We are keeping an eye on all the feedback we get from our users.
We haven't yet reached a conclusion regarding your idea, but you will be notified when we do.

Until then, you might want to consider adding tags to your new terms using the Import Terms functionality: https://poeditor.com/kb/organizing-strings-with-the-tagging-system
This way, you will be able to tag terms in bulk, and will not have to go through the whole process you described.

Any feedback from POEditor? :(