diff --git a/packages/datalib/src/GridDisplay.ts b/packages/datalib/src/GridDisplay.ts
index 00fb8031c..6b7a78c66 100644
--- a/packages/datalib/src/GridDisplay.ts
+++ b/packages/datalib/src/GridDisplay.ts
@@ -288,8 +288,8 @@ export abstract class GridDisplay {
     return this.config.expandedColumns.includes(uniqueName);
   }
 
-  toggleExpandedColumn(uniqueName: string) {
-    this.includeInColumnSet('expandedColumns', uniqueName, !this.isExpandedColumn(uniqueName));
+  toggleExpandedColumn(uniqueName: string, value?: boolean) {
+    this.includeInColumnSet('expandedColumns', uniqueName, value == null ? !this.isExpandedColumn(uniqueName) : value);
   }
 
   getFilter(uniqueName: string) {
diff --git a/packages/datalib/src/TableFormViewDisplay.ts b/packages/datalib/src/TableFormViewDisplay.ts
index 3335b39d3..6043ca7b1 100644
--- a/packages/datalib/src/TableFormViewDisplay.ts
+++ b/packages/datalib/src/TableFormViewDisplay.ts
@@ -265,8 +265,8 @@ export class TableFormViewDisplay extends FormViewDisplay {
     };
   }
 
-  toggleExpandedColumn(uniqueName: string) {
-    this.gridDisplay.toggleExpandedColumn(uniqueName);
+  toggleExpandedColumn(uniqueName: string, value?: boolean) {
+    this.gridDisplay.toggleExpandedColumn(uniqueName, value);
     this.gridDisplay.reload();
   }
 
diff --git a/packages/web/src/formview/FormView.svelte b/packages/web/src/formview/FormView.svelte
index ff7ce8103..b9617935b 100644
--- a/packages/web/src/formview/FormView.svelte
+++ b/packages/web/src/formview/FormView.svelte
@@ -406,6 +406,20 @@
       }));
     }
 
+    if (event.keyCode == keycodes.numPadAdd) {
+      const col = getCellColumn(currentCell);
+      if (col.foreignKey) {
+        formDisplay.toggleExpandedColumn(col.uniqueName, true);
+      }
+    }
+
+    if (event.keyCode == keycodes.numPadSub) {
+      const col = getCellColumn(currentCell);
+      if (col.foreignKey) {
+        formDisplay.toggleExpandedColumn(col.uniqueName, false);
+      }
+    }
+
     if (event.keyCode == keycodes.f2) {
       // @ts-ignore
       dispatchInsplaceEditor({ type: 'show', cell: currentCell, selectAll: true });
diff --git a/packages/web/src/utility/keycodes.js b/packages/web/src/utility/keycodes.js
index 4c02d1af1..30f930921 100644
--- a/packages/web/src/utility/keycodes.js
+++ b/packages/web/src/utility/keycodes.js
@@ -67,6 +67,8 @@ export default {
   numPad7: 103,
   numPad8: 104,
   numPad9: 105,
+  numPadAdd: 107,
+  numPadSub: 109,
   multiply: 106,
   add: 107,
   subtract: 109,