Here are the scripts needed. They must both be placed in the WacrosUserDefined folder. This first one should be run from the drop down list of user defined wacros. It will replaced the standard buttons with my buttons. The bottom button will restore the normal buttons. We need to do this to get the shift-click functionality. The second script MUST be renamed invisible.py and placed in the same folder. Run this from the buttons to get shift-click, or from the dropdown list if you only want to set one material