I really want to see in V2 some way to, at least, hide, or completely remove unnecessary pairs from a large list.
I think this option is very necessary for the new version, without it, unnecessary pairs will get in the way among the necessary ones and distract attention from them.
Although, if not the delete function, then the function of moving pairs through the list could help, so that people could move the most necessary pairs to the first places, and leave the unnecessary ones at the very bottom.