Just like you can open an .ipt or .iam using the model tree in an .idw, I'd like to be able to open an .idw from the model tree of an .iam, .ipt., or even another .idw.
Understandably, an .iam or .ipt can be the main base view in multiple different drawings, therefore causing Inventor to try an open multiple files. This could be solved with a simple dialog box stating what Inventor is trying to open and allowing the user to choose which .idw (or .idw's) to open.
If there is no associated .idw file, let the user know with a dialog box prompt, and then proceed to open the Open file window.

Thanks!
Alex