There is the command Workspaces: Load workspace layout, and you can map that to a hotkey. (If that’s not the command you’re already referring to.)
Or did you mean choosing one workspace that you trigger automatically?
I’m not sure which command you’re referring to, since you’re mentioning a hotkey, rather than the specific command, and I don’t think any of the workspaces commands have hotkeys by default. But when I run the command to open a workspace, I’m able to use the arrow keys. (There’s no manual sort, as far as I know. But arrow keys should work.)
I was mistaken about the arrows; I admit it. I just repeated the experiment, and it worked.
What I mean is that when creating a space, it would be better to have a separate command for each individual space in the command menu. This would eliminate an extra step—having to make a selection. For instance, it would allow me to create a button that opens a specific space whenever it’s pressed.
Yes, the ability to manually sort spaces in the list is definitely something that’s missing.