In 0.2 there will be an option to allow Jamba Spam from all characters (info, whispers) to go a private chat channel of your choice (or group, guild, guild officer chat). And a slash command for changing master is being implemented. So if all your shamans subscribe to that channel, does your problem go away? For instance your "More problems: Second solution" is no longer a problem. Do you agree?
Yes, if it's not too complicated, I mean .. Would I have to assign to a channel, that I made myself? If that's a "yes", then it would almost be too complicated - what I mean, is that Jamba would make the so-called private channel itself.
I don't want to move away from the master concept as it is needed for Jamba-Quest, Jamba-Warnings, etc, so the slash command should enable you to switch quickly.

Warnings still need to go to a master and be in your face; but should you wish the option will be available to send them to the private chat channel as well.
Aye, that's probably the core of your addon, that it's designed around a master! For it to work probably, the slash command should work pretty fast .. it should be no more delay than switching leader.

I can see if I can get a clickable link into the chat message for you. Currently (in 0.1a) if you enable request /who information and forward system messages, you get a clickable link for the original whisperer in your default chat. But that system is a bit spammy.
If you could work that out somehow it would be awesome :-)

Thanks for the quick reply!

Creazil