Cannot enable/disable current memory loop during playback

I've been trying to move to Rekordbox from Traktor since most venues use CDJ's… but Rekordbox seems to be missing one crucial feature:

The ability to enable/disable whichever memory loop (or hot loop, I don't care which) you're currently in WHILE the track is playing WITHOUT jumping back to the beginning of the loop… and all this from a MIDI controller.

In Traktor, it's a simple mapping and it actually works. Push the button on my drum pads and it toggles a loop on/off for all decks.

If I'm already a few beats into the loop, it activates the loop I'm currently in. If there's a memory loop coming up, it'll activate that one as soon as we get to it.

Why is Rekordbox unable to do this? Am I missing something? I can't even get Rekordbox to process incoming MIDI data from other devices if I've got my DDJ-400 hooked up… it just seems to ignore everything else. :P