Can you elaborate a bit on what you mean exactly and how to do this?
Workspaces is used in different ways for different situations. Here is 2 ways how I use it for myself. I use 3 34-inch LG displays.
1. Focus a track that has for example 5 VST inserts on it. Often times, I want to open the GUI for all 5 inserts. Click on 5 inserts to open the GUI and they open in random places all over your screen. Move the GUI's to a screen or area where you would like them to show up in the future. I move them to my 3rd monitor, then arrange them from top to bottom in order of signal processing. So once you have all 5 GUI's in order looking nice and neat, open workspaces. Make sure you go to the lower section of workspaces that is for the project and NOT the global settings. Assign the workspace a name and save it. Close the workspace. Make sure when you close the workspace that the layout goes back to your "normal" template.
The next time you wish to see all 5 inserts on that channel, no need to click on all 5 inserts, just go to workspaces, open the workspace you saved prior, and it shows your configuration you saved. If you only want to see 1 GUI on that channel, don't use a worksapce, just click on the insert, and since you have arranged it already, it will show up in the exact place you saved the workspace.
This is useful if there are lots of inserts on many tracks. For example create separate workspaces to show the bass track, vocals, groups, etc. Then with a KC assigned to a "bass workspace", you can instantly view your bass inserts on different tracks. Assign another KC for "vocals" to see the insert vocals etc.
2. I'm guessing this is the more common use. By default, my left display contains mix console 1. The middle display (set up by a common feature with LG) is a split screen. Half of the split screen is the project page, the other half is mix console 2. The 3rd screen is mix console 3. You can link or unlink these mix consoles plus link or unlink with the project page. Combining this with track configurations offers great flexibility.
However sometimes in my stage of writing I'm very focused on the key edit window and don't care so much about the mix consoles. Or maybe I'm focused on the drum edit window. So with Workspaces, I set my project page to the left display, the key edit page in the middle, and I reserve the right screen for whatever VST's and VSTI's that I want to see. However when saving Workspaces, I save this as a global workspace since I use this one often on multiple projects.
Anyway, this is one convoluted way you could actually move VST's to any area of your multiple or single screen. Save them as workspaces, then recall them to move them.