No, I doubt that I, too, would have much need to separate several groups of applications into workspaces, but then I don't work hard enough to warrant it.
BTW; where is the Desktop Pager panel applet? There's nothing in the bottom panel.
I am finding quite a few interesting facilities in Peppermint and ought, perhaps, to browse the online User Guide to get the best out of it. Actually, having tried one mint flavour I might explore another, if you can recommend a non-PAE distro. I am using Peppermint on a spare laptop so don't care if I screw up an installation.