In the Preferences Dialog you can set important workflow and export parameters.
Export
Visibility by 3D Window
If it is ON the plugin exports only the items which are visible in the ArchiCAD 3D window.
Smoothing Angle
O
Clamp Reflectance 0
E
Use first Frame as Proxy
Ex
FIRE
Material Preview
Texture Folders
You can add five custom folders to look for missing texture files (texture files which are not placed in the location they were in when they were used to create MXM material). You can pick the folder using a dialog by clicking on the “...” buttons.