In the Preferences Dialog you can set important workflow and export parameters.
Export tab
Export mode
From version 2.7.3 the plugin provides two export modes: "3D Window" and "Independent". Both of them have advantages and disadvantages, it depends on the project which one you have to use.
...
In case this flag is ON and you have many referenced MXS scenes with the same source file in your ArchiCAD project, the plugin exports only the first one as normal object and the others as instances. It can be very useful for example if you create a forest with similar mxs trees. The benefit is the much less memory consumption during render time. It is important to note here that if you have enough memory the render speed is usually better with normal objects.
FIRE tab
You can set the main render parameters for the FIRE mode.
Time, Sampling Level and Num. Threads are similar parameters what we have in normal render mode. With Quality you can set the actual resolution at which the interactive engine renders (higher value means better quality but slower preview).
Material Preview tab
You can set the main render parameters for the Maxwell material preview.
Time (s)
and
Sampling Level
Texture Folders tab
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 folders using a dialog by clicking on the “...” buttons.
...