Only parameters that are connected to the Group Input are available. If you add more parameters to the group input, you can click on the Reimport Parameters button on the toolbar of the asset editor to refresh the parameter list.
Node panels, parameter tooltips, Min/Max values are supported.
You must assign unique names to Node panels, otherwise they will be combined into a single panel.
This is disabled by default, and can be turned on when you need that the Front/Right of unreal is the same as the Front/Right of blender, generally for “Position” or “Direction” kind of parameters.
When you expose a pin of this type, in Unreal you will be able to select which kind of geometry you want to export, for example a Spline or a Static Mesh asset.