Save filters on entity screen

Filters on entity screen search box are prefect! Is it posible to save these somehow?
I mean something like this:
I use the customer accounts in our hotel. When a guest checks in, I add his room number to a custom field. When he checks out I delete it from there. I would like to have an entity screen, where those customer accounts are listed, where the “room” custom field is not null. I can set up the filter every time, but when I log out or go to main menu, it resets the filters. I miss something how to save/fix the filters, or this function is not yet available?

Thanks:

Peter Mokos

Is it a entity search widget?

Yes, it is the entity search widget.

Solved with [New 4.1.42] Saving Entity Search Screen columns
Thanks!