Mike, thank you for responding.
I do understand how the trash works but doing it this way, in my opinion, is just a stopgap. There are many times I want to empty the trash, such as after I have watched a TV episode that I do not want to keep.
I do not have a large amount of storage on my media server and would like to move some of my movies to offline media. However, I would like the title to remain in my Plex library, just marked as unavailable, thus the need for an offline flag. Again, I do NOT want Plex to keep track of where it is offline.