Quick Access Toolbar - No Icon Appearing when Edit Parameter is added

[ted1]

I added the Edit Parameter option to the Quick Access Toolbar ... There is a blank space on the Toolbar ... but if I click on this blank space, then the Edit Parameter option IS invoked. An end-user would never be aware that it exists. Would it be possible to emulate the Excel Functionality for adding Icons or the option that exists for Inserting a Custom Icon when you wish to add a Macro to the Toolbar.