I would like to recommend an option to be able to delete or expire picture attachments in specific chat groups.

For example, I have a chat group that is filled mostly with memes. I would like to keep the chat messages permanently but delete or expire the picture attachments after X amount of time.

However, in other chat groups, I would like to keep pictures / chats based upon Textra's global message retention settings.

The advantage of setting granular attachment retention rules by chat group, I believe would save significant local memory space.