Not really no, they have pretty tight tolerances. I think magnets are probably your best bet.
I started out with magnets but it ended up being too fiddly to fit them to my frame so ended up with kekus. If you need to slide alongside the sink/toilet or something I reckon magnets are the way to go.
To seat the panel I need to place it in and then slide it across slightly. Can Keku clips cope with that?