[Feature Request] Multi monitor mode, floating workspaces

[Damirados]

I have been looking for years for fully featured DE that has multi monitor mode way xmonad does it by default.

Basic idea is to have N workspaces and X monitors where workspaces are not tied to monitors in any way but workspaces are main thing and monitors are just devices to view workspaces. That approach simplifies scenarios where number of monitors is dynamic. For example I plug in my laptop into 2 monitors at my desk but frequently move around office to meetings so it changes from single monitor to triple monitor setup all the time.

One workspace can only be on displayed on one monitor at the time, and it behaves according to the following illustration.

1 to 9 - Workspaces
[ ] - Laptop display
{ } - Desk monitor 1
( ) - Desk monitor 2

Workspaces with only laptop
[1] 2  3  4  5  6  7  8  9 ...

Workspaces with monitors plugged in
[1]{2}(3) 4  5  6  7  8  9 ...

My focus in on laptop monitor and I switch to workspace 4
 1 {2}(3)[4] 5  6  7  8  9 ...

My focus is on Desk Monitor 1 and i switch to workspace 3 that is currently on Desk Monitor 2
Workspaces just switch monitors
1 (2){3}[4] 5  6  7  8  9 ...

I unplug Desk Monitor 1
1 (2) 3 [4] 5  6  7  8  9 ...

I unplug Desk Monitor 2
1  2  3 [4] 5  6  7  8  9 ...