Choose Actions to Add Dialog
The dialog opens when you select an item in the Menus and Items List and click the Add After button.
In the dialog, choose the desired action to be added to the menu or toolbar and optionally assign an icon to it.
The list shows all the actions available in IntelliJ IDEA. The actions are grouped below nodes according to the areas of their use.
Specify the location of the file with the icon you want to assign to the selected action. If necessary, click to select the file in the dialog that opens.
Click this button to associate the selected action with the icon specified in the Icon Path dialog.