Since the variable has been converted into an Array, you’ll have to use the array’s Get node using the index of the equipped item. So it would essentially require setting up an index variable for the currently equipped item since there are multiple items instead of one. If you haven’t used Arrays before, it would require familiarizing yourself with them first though.
Also, another option would be to wait for the next update. I’m working on a major revamp of most of the toolkit including support for multiple equipment slots. It will most likely take a few more weeks, so if you’re having difficulty with bringing the 4.19 logic to the 4.26 version, then it might be worth waiting for the next official update.