Hello sheet metal community,

I am trying to add a door flange to a cabinet and this door flange is going to be attached to another flange inside the cabinet, which is supported by studs inside the cabinet.

The above is the cabinet which I am trying to make a sheet metal enclosure. My problem is with the edge flanges. In the below picture, this is a little illustration of what I am trying to do.

But I am not sure how to apply the edge flange feature to create that interior flange (the flange that will be supported on the inside of the cabinet by studs). I tried creating a base flange so I can make edge flanges for the interior flange, but it did not select the edges. Besides this, I'm not sure what else to do to get the interior flange going. Also, I tried using this base flange I made to create the door or exterior flanges, but it didn't select the edges again.

I use sheet metal features sparingly so please pardon my inexperience. This is a 14 gauge sheet, but if there are any other questions, please let me know. I appreciate the help. Part 14 is the file where I try to create the edge flanges on. The entire assembly, including the part 14 file, is in the valet kiosk file.