Weightpainting problem: Can i hide parts of the modell i am weightpainting on?

Hi there,
i am working on a character model, which is a human wearing cloth. So i have sometimes two layers of geometry, for example a jacket and a shirt which is partly under the jacket. Most easy would be just to hide the jacket geometry and weight paint the shirt then, but i found no way to hide geometry while in weight painting mode. Any suggestions how to overcome that issue?
Best regards
Bildermensch

Dont worry, found out myself! Sorry for bothering!
Regards
Bildermensch