[App_rpt-users] Putting a connection on "hold"?

[Phil N6TCT]

Is there a way to put a an asterisk/app_rpt connection on "hold"?
What I'm envisioning is this: Node A is connected to nodes B, C, and
D, let's say.  A user on node A wants to make a brief call from node A
to node E, but not have the people on B, C, and D hear the audio.  Is
there a way to basically say, "put all current connections on hold",
make a new connection, talk for a moment, disconnect, and then say
"ok, take everybody off hold"?

Thanks!

phil