Is there any way to lock the fader to the left lower side, so it stays open no matter I open the Sends or Inserts, or anything else? Kind of like in other DAWs.
In the MixConsole open the Visibility tab and down switch to the Zones. Here you can set in channel to the left/center/right zone. This feature is Cubase Pro (and I think also Artist) only. Definitely not in Cubase Elements/LE/AI.