MCMultiPart2 code is present but currently non-functional. Pressure pipes will not render as properly connected when mcmultipart is active.

Pushing this out to a later date. MCMP2 won't be in the initial release.

Will be a method to stop 2 tubes connecting?

I have been thinking about that, yes. Two things I plan to add:

• A way to camouflage blocks, including tubes. Similar to EnderIO facades in spirit, but probably using some kind of applicator tool.
• To disconnect two tubes, I'm thinking simply a right-click with the pneumatic wrench (or indeed any recognised wrench) on a side to close that side off (or reopen it).

Spent some time on this today. This is a huge horrible mess. I'm pretty sure multipart in general is badly busted at the moment, even outside PNC:R's broken support for the mod, having tested interaction between C&B and Refined Storage in a separate work (you can't put C&B covers in RS cables).

So multipart support for tubes is not happening any time soon. Life is too short to attempt to debug this.

Dropping the idea of MCMP2 support entirely.