I have just found that presentation of the content of subprocess is limited only to one level of “decomposition”. Content of subprocesses (the sencond level of decomposition) being defined within the diagram depicting the content of the decomposed subprocess is not presented.
Well, I am not allowed to speak for many users, however for me it would be usefull and would allow to workaround the problem I am currently experiencing.
I understand that it is not possible to draw subprocess content in the way different than forming subprocess diagram.
I guess that it won’t work immediately for existing drawings. You may need to switch between the “parent” diagram and the sub process diagram to make it “redraw”.
If you are using VP Suite 3.1, you already can access this change. Please follow the steps I mentioned earlier to enable to option to show multiple levels of subprocesses.