or do we?
Plant3D is saying it is compatable with other Autodesk programs (MEP) utilizing 'ACP's'.... "Autocad Connection Points". I've been using MEP for a number of years and have not heard of this formally. I know when building MVparts you assign connection points but is that the default that includes pipe, conduit & HVAC connection points? anyone with Plant experience know how to incorporate other programs?
Also searching for any info on autodesk connection point. Have done some work in P3D. If you have MEP, try typing "ACPTOOLTIPS". Set to "ON". Then try to insert a ACP @ location you need.
Open P3D and xref the MEP model. See if you can select the ACP and continue a pipe.
I don't have MEP, so I'm hoping you will try and let me know.