I have several different custom property files. When you use the custom property tab it allows you to select one of them to use in a part file. If I want to change which one I want to use I do not find a way to release the file type. It allows to reset in the current property file but not change to a different property file. Example: I have Code with a list of codes, Length with a list of lengths and Schedule with a list of schedules as created property files. If I used Code and select a code from the list then realize I want to use Length and a length size, how do I release the Property tab from Code to use the Length File?