Converts a selection set of polyface meshes to polylines. These special groups of polymeshes do not display inner 'cells', instead they display only the outer edge and appear before listing to be regular polylines. This routine is recommended for polymeshes of this nature, and unpredictable results will be obtained if applied to other polymeshes.
Keyboard Command: CnvMesPln
Simply build a selection set of the polymeshes to be processed. The routine will create the resulting regular polyline using the same properties (such as layer) of the object that it replaces.