How to disable toolbar button and load another item on item maintenance form

SOLVED

I have a customization project to create a customized item copy function on Inventory Item Maintenance form. A custom command button is added to the form. When user clicks the button, it fires stored procedure I created to copy the current item with a new ItemID.

The form has a built-in copy command button on toolbar, is it possible to disable this built-in command button on toolbar

After the copying is done, how to reload the form with new item id

Thanks