Hey @skydiveroid! Apologize this request is taking so long, but on the other side we are not getting the enough details required to grant classic confinement. Let me remind you again that a classic snap runs without restrictions so granting this is a very sensitive operation. The fact that this was granted in the past for a related snap does not mean will be granted again to other similar/related snap.
Can you please list those directories? There are various interfaces that can provide you accesses to specific locations such as home, personal-files, system-files and removable-media.
Regarding opening up app applications, I shared a suggestion earlier. Could you try it?
In any case, please share here the denials and issues you are experiencing with those accesses and we will be happy to help you work through them. If you are not familiar with it, snappy-debug will definitely help you find missing interfaces.
Thanks!