XnView Software

Hello
First i want to say that i'm really happy by using XnView. Currently it's the only preferable viewer on my computers
Although theres one thing that is missing in my opinion...
in:
Tools->Options->General->keyboard/mouse->Switching Mode... under the:
"use double click to switch between"... we can see fallowing items:

- Browser <> Full screen | Viewer <> Full screen
- Browser <> Viewer
- Browser > Viewer > Full screen
- Browser > Full screen > Viewer
- do nothing

Seems that the most desirable option for me is missing:

- Browser <> Full screen

Is it possible to set this mode some how?
Or maybe is it possible to completely disable Viewer mode?