Lane validity field for stencils

Hello,

Is there a way to set a lane validity for stencils? According to the OpenDRIVE standard, both objects and signals have this optional field but so far I haven't found a way to do so for stencils. Only signals such as traffic light support that feature. An example use case can be found here.

Additionally, some stencils have their type marked as roadMark while others have theirs set to none. (Stencil_STOP vs. Stencil_Yield). Not sure what logic determines the type but I would like to modify that classification if possible.