When I import a Visio file I would like to replace the Shapes from Visio to Standard Shape Pack "Flowchart". I can change within the same Shape Pack but I can't change it to another pack.

My Question:

1. Is there a way, I don't understand?
2. Is there a plugin I can use?
3. Is there anything in the code that can be altered (Widget shape typ change to).

 Thanks for your help.