Your comments

Hi Sorbodoekje, you mean something like the normal behaviour of watching video's on your mobile phone. When not touching or using the phone in normal situation (like just browsing or reading text), the screen goes to OS screensaver mode after x seconds or minutes (your guest mode). But when you watch a video the screen stays on and the OS screensaver is not activated (your crew mode).

For youtube or other apps, it is possible to override the OS screensaver settings, so it would be nice with i3pro too.