*Original Question*: I have a shrinkwrap model of an engine and would like to make a cut all the way through it in order to remove a large part of it. I have found that I can only cut through individual surfaces one at a time. Is there any way to cut through the whole shrinkwrap with one cut?
*Answers*: 1) Make the original shrinkwrap into a solid and then use cuts or the Edit/Solidify option to cut parts away. 2) Go to the import feature and in the redefine, click the edit button then the delete button. This will let you make a box to select what ever is in the box, then press delete. after that you can patchwork all the surfaces using the make surface from surface/points/lines etc. 3) Keep doing what you are doing using the surface cut surface feature. Will end up with a huge model. 4) Use an outside tool. Use blender.org for example. Export the engine to .obj then import to blender, use the knife, cut it to your liking, export as .obj and re import the piece in pro/e. This one is quick, but the model is triangulated and will be larger than the original probably.
*Comment*: I think my problem is the fact that my original shrinkwrap has too many little holes in it (the quality is poor). This causes it to abort when trying to make a merged solid shrinkwrap. So the best solution, in my particular case, is to go back to the engine manufacturer and get a better original model to work with.