Displayed when you right-click an unregistered button.

Displays the Register Item dialog to register a new item.

Creates a new submenu.

Inserts an empty button by shifting registered items after the target position backward.

Deletes the empty button at the target position and shifts subsequent registered items forward.

Allows insertion or deletion of empty rows or columns.
Insert Empty Row shifts rows downward from the row containing the selected button and inserts a blank row.
Insert Empty Column shifts columns rightward from the column containing the selected button and inserts a blank column.
Delete Empty Row deletes the row containing the selected button and shifts subsequent rows upward.
Delete Empty Column deletes the column containing the selected button and shifts subsequent columns leftward.