Global Send Receive limits?

[Lindon]

Are there limits on the number of Global Send/Receives I can set up?

I can set up (in this case) 6 sends and they display in the receive node when I ask it:

..but when I try and connect it - Im only given 4 options....

[Lindon]

@Lindon hmm, more investigation.... Seems I cant send mid/side information using a Global Send/Receive slot..... I wonder why?