Hello Simonruri, 
Not that I know off. Have you checked feedback.mews.com and maybe see if anyone else have requested something like this before?

Hello ​@simonruri,

Do you often have unassigned rooms on the timeline? Are you manually unassigning allocated rooms and then selecting rooms for each reservation upon arrival - the traditional way?

If so, I recommend letting the system assign rooms automatically, and only making changes when necessary or to accommodate specific requests or needs.

The “Optimize Space Allocation” feature can be a great help - just put a little trust in the system.

Anything left under the red area will typically be actual overbookings or reservations that require special attention and manual reassignment.