I am looking at the settings in my x2gobroker-sessionprofiles.conf, and it seems to indicate the broker can set some defaults to turn off allowing printers, and filesystems to be shared.

useexports=false
print=false

I have tried turning these on, and I don't believe they are working.  Specifically if I connect to the broker, then a server it servs out.  Once connected, I can use the x2go Client window's share folder button.  In there I can define an export, and then highlight it and press share.  This will then show up on the workstation. 

Am I missing something?  What do these options do if not turn on/off the ability for the user to make these shares?  If I wanted to disable these shares/printing, and then enable them for specific hosts by overriding it, are there other options I can activate to achieve this?