Eject and insert tapes without modify pool.

Hello Symantec experts.

Because an special request, some tapes needs to be eject from library, then work on them and immediatly after, tapes need be back to library, my doubt is how can I do to keep tapes in the same pool before and after the eject, and also, is there a way the images in those tapes could expire in this movement?.

Let's suppose we have a tape TP0001 assigned to pool PL0001 with X number of images stored on it and also this tape was ejected, when the tape is put it back in the library is assigned to scracth pool, that means the images were expired?? how can I keep tapes in the same pool?