Search for functionality (interface, appearance RDM)

Hello colleagues. To begin with, I apologize in advance, because I may not be using your program correctly, and my question may seem irrelevant or even ridiculous to you.
We are talking about the program Remote Desktop Manager, its free version, or rather about its interface.
Its functionality is simply limited and I really liked it, but as they say there are nuances:
1) I usually work with a lot of open windows. And I got used to the functionality of the "Multidesk" program. It is quite simple, even too much, but we are talking about its tabs. Opening its tab almost completely switches to it. The entire active screen is given to her.
I could not configure this behavior in your program.
As a result, I do not have 5-10 windows open, 2 cm wide ... you cannot work with this.
Is it even possible to make it so that when the tabs are opened, the focus and the screen are completely at her disposal? I ask you to tell me how to do this.

2) Control panel ... tell me how to remove / disable this cruel interface? it's terrible, it takes up most of the screen by default and you can't do anything with it. Even when you detach it, the focus is constantly shifting to it.

RDM:
I do not know whether it is visible or not
but here 4 windows are open, and the program screen is divided into 4 parts ...

Multidesk:

there is one active window, it gets the whole screen of the program