With the occasional filament jam in the MMU, I always had the problem of manually moving the selector to the correct position in order to be able to pull the filament out again cleanly.
With the filament clips, the selector has the correct position when it is exactly flush with the right edge of the corresponding clip. Fillers on the left and right ensure the correct position of the 5 clips in the center.
In addition, you can see at a glance which filament is loaded.
When changing filament, simply remove the clip, put it on the filament ( 2 holes!!) and store it together with the spool.
First there's the PETG and PLA clip - anyone who needs more send me a short info ;-)
Easy to print - no support - no edge
Filament: PLA ok - PETG better, because elastic
The author hasn't provided the model origin yet.