Sen2Coral deglint - Glinted areas

I am running the DeGlintOp through snappy. I understand you have to pass the module some “glinted areas”. These can be created in the SNAP GUI, saved in a vector container, where they can be accessed.

I was wondering, has anyone created these “glinted area” polygons without the use of SNAP GUI, and managed to pass then into the DeGlintOn in snappy, or is this functionality not available?