visibility of Karaf console commands / addtional console?

[Max Spring]

I want to expose a specific set of Karaf console commands (via ssh) to
a particular group of users. They should not see (or be able to run)
any other Karaf console command. These Karaf commands already exist on
the "regular" Karaf console (on port 8101).

Can I

  (a) restrict the visibility of Karaf commands?

and/or

  (b) run an additional console (on a different port) and have Karaf
      commands show up here *in addition* to showing up on the "regular"
      console?

Thanks for your guidance.
-Max