src/vs/workbench/contrib/preferences/browser/keybindingsEditor.ts/ActionsColumnRenderer/renderElement
class ActionsColumnRenderer:	renderElement(keybindingItemEntry: IKeybindingItemEntry, index: number, templateData: IActionsColumnTemplateData, height: number | undefined): void {
		templateData.actionBar.clear();
		const actions: IAction[] = [];
		if (keybindingItemEntry.keybindingItem.keybinding) {
			actions.push(this.createEditAction(keybindingItemEntry));
		} else {
			actions.push(this.createAddAction(keybindingItemEntry));
		}
		templateData.actionBar.push(actions, { icon: true });
	}