You can modify existing presets with custom
option settings and UI layouts using the Edit preset mode.
Click
Edit > Edit preset.
A dialog
box opens to inform you that you must right-click a tree view item
to edit its parameters. Click Ok.
This
splits the UI into two sections, adding a tree view of the FBX options in
the left section.
Select,
and then right-click elements in the Tree View to access the Edit options.
NoteSome edit options are common to all structure
levels, while some are specific to a particular structure level.
You can apply some options at any level of the options structure.
See
Edit mode options.