[Therion] Export Multiple Caves to Single KML Model

Hi Folks, Is it supported to export a model of multiple caves to a single KML file? When I attempt the export, the entrance placemarks of both caves show up, but only the first sourced caves centerline is exported. Not only that, all of the placemarks are grouped in a single folder. Conversely, exporting a cave-list of multiple caves to KML works as expected, with both caves showing up in individual folders. Thanks. Scott