I can change the clef to percussion clef

Percussion clef isn't a normal clef that can be added to standard staves - you need to actually add a percussion instrument. When you do that, this clef is chosen by default. Or, if you want to switch to percussion mid-score, use an instrument change text from the palette to tell MuseScore which instrument you are changing to, and again, the clef happens automatically.

Simialrly for tab, you can't just add a tab clef to a standard staff as that wouldn't make musical sense. You need to actually have a tab instrument. So select guitar or whatever when creating the staff.