How to add a button in the FPM application..?

Here is my FPM application for MDG(Material data governance)

Anybody please tell me how to add it.

Is there any thing to do with the feeder class because it is bassically built by using the feeder classes.

I that screen, near to the CHECK Button i have to add another button and wanted to do some event for that.

It will be realy helpfull if some could tell me the answer.