diff --git a/.gitattributes b/.gitattributes
index 181e30486ca..eabce020be3 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -15688,6 +15688,7 @@ forge-gui/src/main/java/forge/gui/toolbox/itemmanager/package-info.java -text
 forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/ColorSetRenderer.java -text
 forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/ColumnDef.java -text
 forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/DeckQuantityRenderer.java -text
+forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/GroupDef.java -text
 forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/ImageView.java -text
 forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/IntegerRenderer.java -text
 forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/ItemCellRenderer.java -text
diff --git a/forge-gui/src/main/java/forge/gui/deckeditor/DeckProxy.java b/forge-gui/src/main/java/forge/gui/deckeditor/DeckProxy.java
index 3145c671b4f..458cb13b4a2 100644
--- a/forge-gui/src/main/java/forge/gui/deckeditor/DeckProxy.java
+++ b/forge-gui/src/main/java/forge/gui/deckeditor/DeckProxy.java
@@ -13,6 +13,7 @@ import forge.Singletons;
 import forge.StaticData;
 import forge.card.CardEdition;
 import forge.card.ColorSet;
+import forge.card.MagicColor;
 import forge.deck.CardPool;
 import forge.deck.Deck;
 import forge.deck.DeckGroup;
@@ -44,6 +45,7 @@ public class DeckProxy implements InventoryItem {
 
     // cached values
     protected ColorSet color;
+    protected ColorSet colorIdentity;
     protected Iterable<GameFormat> formats;
     private int mainSize = Integer.MIN_VALUE;
     private int sbSize = Integer.MIN_VALUE;
@@ -103,6 +105,7 @@ public class DeckProxy implements InventoryItem {
 
     public void invalidateCache() {
         color = null;
+        colorIdentity = null;
         formats = null;
         edition = null;
         mainSize = Integer.MIN_VALUE;
@@ -116,6 +119,28 @@ public class DeckProxy implements InventoryItem {
         return color;
     }
 
+    public ColorSet getColorIdentity() {
+        if (colorIdentity == null) {
+            byte colorProfile = MagicColor.COLORLESS;
+
+            for (Entry<DeckSection, CardPool> deckEntry : getDeck()) {
+                switch (deckEntry.getKey()) {
+                case Main:
+                case Sideboard:
+                case Commander:
+                    for (Entry<PaperCard, Integer> poolEntry : deckEntry.getValue()) {
+                        colorProfile |= poolEntry.getKey().getRules().getColorIdentity().getColor();
+                    }
+                    break;
+                default:
+                    break; //ignore other sections
+                }
+            }
+            colorIdentity = ColorSet.fromMask(colorProfile);
+        }
+        return colorIdentity;
+    }
+
     public Iterable<GameFormat> getFormats() {
         if (formats == null) {
             formats = Singletons.getModel().getFormats().getAllFormatsOfDeck(getDeck());
diff --git a/forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/ColumnDef.java b/forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/ColumnDef.java
index 4b4e98f7149..8c066d5f7ca 100644
--- a/forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/ColumnDef.java
+++ b/forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/ColumnDef.java
@@ -42,13 +42,6 @@ import forge.item.InventoryItemFromSet;
 import forge.item.PaperCard;
 import forge.limited.DraftRankCache;
 
-/**
- * A column object in a EditorTableModel in the card editor.
- * Requires a sorting function and a display function
- * (to extract information as appropriate for table row data).
- * 
- * @param <T> a generic type
- */
 public enum ColumnDef {
     STRING("", "", 0, -1, -1, SortState.ASC, new ItemCellRenderer(),
             new Function<Entry<InventoryItem, Integer>, Comparable<?>>() {
diff --git a/forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/GroupDef.java b/forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/GroupDef.java
new file mode 100644
index 00000000000..1d31c6d6cbd
--- /dev/null
+++ b/forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/GroupDef.java
@@ -0,0 +1,182 @@
+package forge.gui.toolbox.itemmanager.views;
+
+import com.google.common.base.Function;
+
+import forge.card.CardType;
+import forge.card.ColorSet;
+import forge.gui.deckeditor.DeckProxy;
+import forge.item.InventoryItem;
+import forge.item.PaperCard;
+
+public enum GroupDef {
+    COLOR("Color", getColorGroups(),
+            new Function<Integer, ColumnDef>() {
+                @Override
+                public ColumnDef apply(final Integer groupIndex) {
+                    return null;
+                }
+            },
+            new Function<InventoryItem, Integer>() {
+                @Override
+                public Integer apply(final InventoryItem item) {
+                    if (item instanceof PaperCard) {
+                        return getColorGroup(((PaperCard) item).getRules().getColor());
+                    }
+                    else if (item instanceof DeckProxy) {
+                        return getColorGroup(((DeckProxy) item).getColor());
+                    }
+                    return -1;
+                }
+            }),
+    COLOR_IDENTITY("Color", getColorGroups(),
+            new Function<Integer, ColumnDef>() {
+                @Override
+                public ColumnDef apply(final Integer groupIndex) {
+                    return null;
+                }
+            },
+            new Function<InventoryItem, Integer>() {
+                @Override
+                public Integer apply(final InventoryItem item) {
+                    if (item instanceof PaperCard) {
+                        return getColorGroup(((PaperCard) item).getRules().getColorIdentity());
+                    }
+                    else if (item instanceof DeckProxy) {
+                        return getColorGroup(((DeckProxy) item).getColorIdentity());
+                    }
+                    return -1;
+                }
+            }),
+    CREATURE_SPELL_LAND("Creatures/Spells/Lands",
+            new String[] { "Creatures", "Spells", "Lands" },
+            new Function<Integer, ColumnDef>() {
+                @Override
+                public ColumnDef apply(final Integer groupIndex) {
+                    if (groupIndex == 2) {
+                        return ColumnDef.NAME; //pile lands by name regardless
+                    }
+                    return null;
+                }
+            },
+            new Function<InventoryItem, Integer>() {
+                @Override
+                public Integer apply(final InventoryItem item) {
+                    if (item instanceof PaperCard) {
+                        CardType type = ((PaperCard) item).getRules().getType();
+                        if (type.isCreature()) {
+                            return 0;
+                        }
+                        if (type.isArtifact() || type.isEnchantment() || type.isPlaneswalker() || type.isInstant() || type.isSorcery()) {
+                            return 1;
+                        }
+                        if (type.isLand()) {
+                            return 2;
+                        }
+                    }
+                    return -1;
+                }
+            }),
+    CARD_TYPE("Card Type",
+            new String[] { "Lands", "Artifacts", "Creatures", "Enchantments", "Planeswalkers", "Instants", "Sorceries" },
+            new Function<Integer, ColumnDef>() {
+                @Override
+                public ColumnDef apply(final Integer groupIndex) {
+                    if (groupIndex == 0) {
+                        return ColumnDef.NAME; //pile lands by name regardless
+                    }
+                    return null;
+                }
+            },
+            new Function<InventoryItem, Integer>() {
+                @Override
+                public Integer apply(final InventoryItem item) {
+                    if (item instanceof PaperCard) {
+                        CardType type = ((PaperCard) item).getRules().getType();
+                        if (type.isLand()) {
+                            return 0;
+                        }
+                        if (type.isArtifact()) {
+                            return 1;
+                        }
+                        if (type.isCreature()) {
+                            return 2;
+                        }
+                        if (type.isEnchantment()) {
+                            return 3;
+                        }
+                        if (type.isPlaneswalker()) {
+                            return 4;
+                        }
+                        if (type.isInstant()) {
+                            return 5;
+                        }
+                        if (type.isSorcery()) {
+                            return 6;
+                        }
+                    }
+                    return -1;
+                }
+            });
+
+    GroupDef(String name0, String[] groups0, Function<Integer, ColumnDef> fnGetPileByOverride0, Function<InventoryItem, Integer> fnGroupItem0) {
+        this.name = name0;
+        this.groups = groups0;
+        this.fnGetPileByOverride = fnGetPileByOverride0;
+        this.fnGroupItem = fnGroupItem0;
+    }
+
+    private final String name;
+    private final String[] groups;
+    private final Function<Integer, ColumnDef> fnGetPileByOverride;
+    private final Function<InventoryItem, Integer> fnGroupItem;
+
+    public String getName() {
+        return this.name;
+    }
+
+    public String[] getGroups() {
+        return this.groups;
+    }
+
+    public ColumnDef getGroupPileBy(int groupIndex, ColumnDef defaultPileBy) {
+        ColumnDef pileBy = this.fnGetPileByOverride.apply(groupIndex);
+        if (pileBy == null) {
+            return defaultPileBy;
+        }
+        return pileBy;
+    }
+
+    public int getItemGroupIndex(InventoryItem item) {
+        return this.fnGroupItem.apply(item);
+    }
+
+    private static String[] getColorGroups() {
+        //TODO: Support breaking up Multicolor into separate groups for each color combination
+        return new String[] { "Colorless", "White", "Blue", "Black", "Red", "Green", "Multicolor" };
+    }
+
+    private static Integer getColorGroup(ColorSet color) {
+        if (color.isColorless()) {
+            return 0;
+        }
+        if (color.isMulticolor()) {
+            return 6;
+        }
+        if (color.hasWhite()) {
+            return 1;
+        }
+        if (color.hasBlue()) {
+            return 2;
+        }
+        if (color.hasBlack()) {
+            return 3;
+        }
+        if (color.hasRed()) {
+            return 4;
+        }
+        if (color.hasGreen()) {
+            return 5;
+        }
+        return -1; //shouldn't happen
+    }
+}
diff --git a/forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/ImageView.java b/forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/ImageView.java
index 0a8f5d310af..b77b9dc819b 100644
--- a/forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/ImageView.java
+++ b/forge-gui/src/main/java/forge/gui/toolbox/itemmanager/views/ImageView.java
@@ -38,16 +38,12 @@ import forge.view.arcane.CardPanel;
 public class ImageView<T extends InventoryItem> extends ItemView<T> {
     private static final float GAP_SCALE_FACTOR = 0.04f;
 
-    public enum LayoutType {
-        Spreadsheet,
-        Piles
-    }
-
     private final CardViewDisplay display;
     private List<Integer> selectedIndices = new ArrayList<Integer>();
     private int imageScaleFactor = 3;
     private boolean allowMultipleSelections;
-    private LayoutType layoutType = LayoutType.Spreadsheet;
+    private ColumnDef pileBy = null;
+    private GroupDef groupBy = null;
 
     public ImageView(ItemManager<T> itemManager0, ItemManagerModel<T> model0) {
         super(itemManager0, model0);
@@ -118,7 +114,7 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
 
     @Override
     protected void onResize() {
-        if (this.layoutType == LayoutType.Spreadsheet) {
+        if (this.pileBy == null) {
             display.refresh(); //need to refresh to adjust wrapping of items
         }
     }
@@ -275,7 +271,7 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
             display.scrollRectToVisible(new Rectangle(x, y, width, height));
         }
     }
-    private class Section extends DisplayArea {
+    private class Group extends DisplayArea {
         private final List<Pile> piles = new ArrayList<Pile>();
         private boolean isCollapsed;
     }
@@ -304,7 +300,7 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
         private Point hoverScrollPos;
         private ItemInfo hoveredItem;
         private List<ItemInfo> items = new ArrayList<ItemInfo>();
-        private List<Section> sections = new ArrayList<Section>();
+        private List<Group> sections = new ArrayList<Group>();
 
         private CardViewDisplay() {
             this.setOpaque(false);
@@ -326,13 +322,11 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
             this.sections.clear();
 
             if (!this.items.isEmpty()) {
-                switch (ImageView.this.layoutType) {
-                case Spreadsheet:
+                if (ImageView.this.pileBy == null) {
                     buildSpreadsheet();
-                    break;
-                case Piles:
+                }
+                else {
                     buildPiles();
-                    break;
                 }
             }
 
@@ -342,10 +336,10 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
 
         private ItemInfo getItemAtPoint(Point p) {
             for (int i = this.sections.size() - 1; i >= 0; i--) {
-                Section section = this.sections.get(i);
-                if (!section.isCollapsed && section.getBounds().contains(p)) {
-                    for (int j = section.piles.size() - 1; j >= 0; j--) {
-                        Pile pile = section.piles.get(j);
+                Group group = this.sections.get(i);
+                if (!group.isCollapsed && group.getBounds().contains(p)) {
+                    for (int j = group.piles.size() - 1; j >= 0; j--) {
+                        Pile pile = group.piles.get(j);
                         if (pile.getBounds().contains(p)) {
                             for (int k = pile.items.size() - 1; k >= 0; k--) {
                                 ItemInfo item = pile.items.get(k);
@@ -378,7 +372,7 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
         private void buildSpreadsheet() {
             ImageView.this.getScroller().setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
 
-            Section section = new Section();
+            Group group = new Group();
 
             final int itemAreaWidth = getVisibleSize().width;
             int itemWidth = 50 * imageScaleFactor;
@@ -407,16 +401,16 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
 
                 if (pile.items.size() == 0) {
                     pile.setBounds(0, y, itemAreaWidth, dy);
-                    section.piles.add(pile);
+                    group.piles.add(pile);
                 }
                 pile.items.add(itemInfo);
                 x += dx;
             }
 
-            section.setBounds(0, 0, itemAreaWidth, y + itemHeight + CardArea.GUTTER_Y);
-            this.setPreferredSize(section.getBounds().getSize());
+            group.setBounds(0, 0, itemAreaWidth, y + itemHeight + CardArea.GUTTER_Y);
+            this.setPreferredSize(group.getBounds().getSize());
 
-            this.sections.add(section);
+            this.sections.add(group);
         }
 
         private void buildPiles() {
@@ -458,26 +452,25 @@ public class ImageView<T extends InventoryItem> extends ItemView<T> {
             int sectionIdx = 0, pileIdx = 0;
             final int scrollTop = ImageView.this.getScroller().getVerticalScrollBar().getValue();
             final int scrollBottom = scrollTop + getVisibleSize().height;
-            switch (ImageView.this.layoutType) {
-            case Spreadsheet:
+            if (ImageView.this.pileBy == null) {
                 pileIdx = scrollTop / this.sections.get(0).piles.get(0).getBounds().height;
-                break;
-            case Piles:
-                break;
+            }
+            else {
+                
             }
             for (; sectionIdx < this.sections.size(); sectionIdx++, pileIdx = 0) {
-                Section section = this.sections.get(sectionIdx);
-                if (section.getBounds().y >= scrollBottom) {
+                Group group = this.sections.get(sectionIdx);
+                if (group.getBounds().y >= scrollBottom) {
                     break;
                 }
                 if (this.sections.size() > 1) {
-                    //TODO: Draw section name/border
-                    if (section.isCollapsed) {
+                    //TODO: Draw group name/border
+                    if (group.isCollapsed) {
                         continue;
                     }
                 }
-                for (; pileIdx < section.piles.size(); pileIdx++) {
-                    Pile pile = section.piles.get(pileIdx);
+                for (; pileIdx < group.piles.size(); pileIdx++) {
+                    Pile pile = group.piles.get(pileIdx);
                     if (pile.getBounds().y >= scrollBottom) {
                         break;
                     }