I do piping design and was wondering what the similarities are between the Plant 3D (that my current employer is considering getting) and Inventor in regards to locking pieces together. I currently use CADWORX and would gleefully chuck it out the window. I have several years experience with Inventor at a previous employer and had grown rather fond of it. I liked being able to lock pieces together to insure the important connections not be separated. Can this be done in Plant 3D? If it gives you the ability to locate the beginning of the pipe route and the end of the pipe route and flagging obstacles along the way it would be a dream come true!