Sure you can!
I use this trick that relies on launching Spine through the command line, (scary sounding! but all you need to do is actually this):
open the notepad or any text editing software.
write for example:
cd C:\Program Files (x86)\Spine
Spine -u 3.6.53
The first line should point to the Spine installation folder (cd stands for change directory, so that you can move this file on the desktop or where you prefer).
The second line indicates the Spine version you want to launch.
Save the file, then change the extension from .txt
to .bat
(for windows at least)
double click it to launch Spine from the console, in the chosen version.
I have several of these files renamed with their version and the project I use them for to avoid making mistakes. Meanwhile I often also open the regular Spine version installed on my pc.