It does Grem. Perhaps you mean track. A MIDI channel is not the same as a track. 

is there an efficient way to set up one MIDI source track for multiple soft synth/VSTi tracks?

Use a virtual MIDI cable (like LoopBe).
 

Thanks b rock.  I have "loopMIDI" installed but I can't get that to work inside X2P.  Which "LoopBE" are you using, 1 or 30?

Xlutop Chainer will also allow you to stack MIDI synths to respond to a single MIDI input, as will a few other plugins.  See the thread here:
http://forum.cakewalk.com...realized-m1309862.aspx

Which "LoopBE" are you using, 1 or 30?

LoopBe1.
 

I have "loopMIDI" installed but I can't get that to work inside X2P.

You're going to want to stay away from default "All Inputs - Omni" or "None" for the MIDI Inputs.  It will create a MIDI feedback loop back into the LoopBe (as well as your targeted synths).  Use a specific MIDI channel to route the MIDI track to all of your synths.
 
Check your LoopBe systray icon (right-click) that's created with the LoopBe installation.  If you managed to start a MIDI feedback loop during experimentation, you may have "Mute" checked there as a safeguard.  Just Unmute it (after setting up a single MIDI channel routing scheme).

I don't really understand the purpose to be honest. You can put all midi tracks inside a folder if you don't like looking at them. And you can, as suggested, link the clips. If you want to record to several tracks at once you can even do that. Having the tracks separately allows you to adjust simple settings such as transposition, channel, etc. This would otherwise become a problem.

Thanks b rock.
 
Sanderxpander, it's probably a matter of workflow.  Having a bunch of linked clips may work for you, I just don't prefer it.  And, this is for layering only, so only need a single MIDI source track.