This is a repost of a feature request from an older version of Cubase, but I’d still love to see it implemented:
“It would be nice to have a central storage point for midi (and possibly audio although the pool is fine for audio) bits that might come in handy for a project that you want to come back to but aren’t part of your main tune. It would be ideal if it were not on the main timeline as that gets distracting. For instance, currently I might have and idea record it in Midi and then have to move it over to bar 100 (just later in the song) and then maybe get back to it. If there were a panel, not unlike the pool, for midi clips that might be useful in a project that would help out tremendously.