
Originally Posted by
dkoch
DISCLAIMER: I do not use ABS, just ADT. [Please pardon the obvious ignorance below.]
If MVParts behave at all like Multi-View Blocks, you may be able to make a copy of the part file [do MVParts have separate AEC Content files for each part??] or the "part tool" [is there such a thing??] and create a new content file/part tool that has the desired layer key specified. If you have a lot of valve types and a lot of different piping systems, that could mean a lot of files/tools, which is probably why the out-of-the-box setup is the way it is. Changing the layer after the fact may be the more sensible approach.