Can this be a thing? I happen to see pools used a lot more than sets, so since "Add to set..." and "Remove from set..." modes exist, I don't see why the equivalent for pools shouldn't.
Updated
Topic: Add to pool mode?
Posted under e621 Tools and Applications
The pool import is the way to go here. Since pools rarely change after they are made (unless they are an ongoing comic) they usually only need to be imported once.
Also, you can always add the tag pool:1234 (where 1234 is the number of the pool) to add it to that particular pool.
Updated by anonymous
Thanks a bunch! :)
Updated by anonymous