Application Development Software

Hi all,

I am trying to evaluate if "WebCenter Sites Mobility Server" adapts to the requirements of a new project. I have been reading the documentation intensively but I have not been able to find the answers to the two questions below.

1) Is it possible to use Site Studio for External Applications with WebCenter Sites Mobility Server?
2) Is it possible to use workflows with Mobility Server so that a contributor can accept or reject changes?

Any help would be really helpful.