diff --git a/src/app/globals.css b/src/app/globals.css
index 5aa8f85..bb8df89 100644
--- a/src/app/globals.css
+++ b/src/app/globals.css
@@ -1228,7 +1228,7 @@ a.kpi:hover {
 }
 
 .tree-grid .cell-cable-sizing-trigger::after {
-  content: " ⚡";
+  content: " 🧮";
   font-size: 0.8em;
   opacity: 0.7;
 }
diff --git a/src/frontend/components/circuit-tree-editor.tsx b/src/frontend/components/circuit-tree-editor.tsx
index 3e934c7..e16a4bb 100644
--- a/src/frontend/components/circuit-tree-editor.tsx
+++ b/src/frontend/components/circuit-tree-editor.tsx
@@ -4277,7 +4277,7 @@ export function CircuitTreeEditor(props: { projectId: string; circuitListId: str
                         row.rowType !== "deviceRow"
                     );
                     const isCableSizingTrigger = Boolean(
-                      column.key === "cableSummary" &&
+                      (column.key === "cableSummary" || column.key === "cableCrossSection") &&
                         row.circuit &&
                         row.rowType !== "deviceRow"
                     );