diff --git a/core/src/mindustry/ui/fragments/PlacementFragment.java b/core/src/mindustry/ui/fragments/PlacementFragment.java
index 7df456cb0c..dcfcba3a67 100644
--- a/core/src/mindustry/ui/fragments/PlacementFragment.java
+++ b/core/src/mindustry/ui/fragments/PlacementFragment.java
@@ -9,6 +9,7 @@ import arc.scene.event.*;
 import arc.scene.style.*;
 import arc.scene.ui.*;
 import arc.scene.ui.Tooltip.*;
+import arc.scene.ui.layout.Stack;
 import arc.scene.ui.layout.*;
 import arc.struct.*;
 import arc.util.*;
@@ -29,6 +30,8 @@ import mindustry.world.*;
 import mindustry.world.blocks.ConstructBlock.*;
 import mindustry.world.meta.*;
 
+import java.util.*;
+
 import static mindustry.Vars.*;
 
 public class PlacementFragment{
@@ -474,9 +477,9 @@ public class PlacementFragment{
 
                         Bits availableCommands = new Bits(content.unitCommands().size);
                         Bits availableStances = new Bits(content.unitStances().size);
+                        Bits activeTypes = new Bits(content.units().size), prevActiveTypes = new Bits(content.units().size);
 
                         u.left();
-                        int[] curCount = {0};
                         Bits usedCommands = new Bits(content.unitCommands().size);
                         var commands = new Seq<UnitCommand>();
 
@@ -484,6 +487,8 @@ public class PlacementFragment{
                         var stances = new Seq<UnitStance>();
                         var stancesOut = new Seq<UnitStance>();
 
+                        int[] counts = new int[content.units().size];
+
                         rebuildCommand = () -> {
                             u.clearChildren();
                             var units = control.input.selectedUnits;
@@ -493,7 +498,7 @@ public class PlacementFragment{
                                 commands.clear();
                                 stances.clear();
 
-                                int[] counts = new int[content.units().size];
+                                Arrays.fill(counts, 0);
 
                                 for(var unit : units){
                                     counts[unit.type.id] ++;
@@ -514,12 +519,18 @@ public class PlacementFragment{
 
                                 int col = 0;
                                 for(int i = 0; i < counts.length; i++){
+                                    int fi = i;
                                     if(counts[i] > 0){
                                         var type = content.unit(i);
                                         unitlist.add(StatValues.stack(type, counts[i])).pad(4).with(b -> {
                                             b.clearListeners();
                                             b.addListener(Tooltips.getInstance().create(type.localizedName, false));
 
+                                            Label amountLabel = b.find("stack amount");
+                                            if(amountLabel != null){
+                                                amountLabel.setText(() -> counts[fi] + "");
+                                            }
+
                                             var listener = new ClickListener();
 
                                             //left click -> select
@@ -602,6 +613,9 @@ public class PlacementFragment{
                                 activeStances.clear();
                                 availableCommands.clear();
                                 availableStances.clear();
+                                activeTypes.clear();
+
+                                Arrays.fill(counts, 0);
 
                                 //find the command that all units have, or null if they do not share one
                                 for(var unit : control.input.selectedUnits){
@@ -610,6 +624,10 @@ public class PlacementFragment{
                                         activeStances.set(cmd.stances);
                                     }
 
+                                    counts[unit.type.id] ++;
+
+                                    activeTypes.set(unit.type.id);
+
                                     stancesOut.clear();
                                     unit.type.getUnitStances(unit, stancesOut);
 
@@ -622,12 +640,9 @@ public class PlacementFragment{
                                     }
                                 }
 
-                                int size = control.input.selectedUnits.size;
-                                if(curCount[0] != size || !usedCommands.equals(availableCommands) || !usedStances.equals(availableStances)){
-                                    if(!(curCount[0] + size == 0)){
-                                        rebuildCommand.run();
-                                    }
-                                    curCount[0] = size;
+                                if(!usedCommands.equals(availableCommands) || !usedStances.equals(availableStances) || !prevActiveTypes.equals(activeTypes)){
+                                    rebuildCommand.run();
+                                    prevActiveTypes.set(activeTypes);
                                 }
 
                                 //not a huge fan of running input logic here, but it's convenient as the stance arrays are all here...
diff --git a/core/src/mindustry/world/meta/StatValues.java b/core/src/mindustry/world/meta/StatValues.java
index 8556ef3adc..2dcc47bb38 100644
--- a/core/src/mindustry/world/meta/StatValues.java
+++ b/core/src/mindustry/world/meta/StatValues.java
@@ -236,7 +236,7 @@ public class StatValues{
         if(amount != 0){
             stack.add(new Table(t -> {
                 t.left().bottom();
-                t.add(amount >= 1000 ? UI.formatAmount(amount) : amount + "").style(Styles.outlineLabel);
+                t.add(amount >= 1000 ? UI.formatAmount(amount) : amount + "").name("stack amount").style(Styles.outlineLabel);
                 t.pack();
             }));
         }