[3ds Max Python] Save File with EXR Configuration via Dialog

Hey guys,
we are currently developing some automatic renderpath tools. Therefore we want our users to have the possibility to choose manual paths and also click the “Setup” button, to choose some G-Buffer or other Exr Configs.
Currently we use a MaxScript “selectSaveBitmap” Dailog. There we can choose all the settings, but how the hell do we get those settings to work with in code? and furthermore, how do we write those informations into our rendersettings?

Thanks a lot!

Flo