A kiterjesztést használom, és mikor megpróbálnok átváltani a kamerák között akkor nem működik
MOD EDIT: direct extension link removed, only the developer of an extension may direct link their extension on this community.
It would really help if you provided a screenshot of your relevant blocks, so we can see what you are trying to do, and where the problem may be.
Also please provide a link to the documentation of that extension.
To get an image of your blocks, right click in the Blocks Editor and select "Download Blocks as Image". You might want to use an image editor to crop etc. if required. Then post it here in the community.
Taifun
Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by 
Taifun.
When the app start
Event what set the camera to 1
Event what set the camera to 2
you might want to ask the author of that extension in the extension thread
Taifun