Index: trunk/src/libcschem/cnc_grp.c
===================================================================
--- trunk/src/libcschem/cnc_grp.c	(revision 948)
+++ trunk/src/libcschem/cnc_grp.c	(revision 949)
@@ -119,7 +119,12 @@
 		grp->xform = g2d_xform_rotate(grp->xform, grp->rot * CSCH_DEG2RAD);
 }
 
+void csch_cgrp_role_update(csch_sheet_t *sheet, csch_cgrp_t *grp)
+{
+	grp->hdr.dsply = csch_cobj_dsply(grp);
+}
 
+
 void csch_cgrp_bbox_update(csch_sheet_t *sheet, csch_cgrp_t *grp)
 {
 	csch_chdr_t *h;
Index: trunk/src/libcschem/cnc_grp.h
===================================================================
--- trunk/src/libcschem/cnc_grp.h	(revision 948)
+++ trunk/src/libcschem/cnc_grp.h	(revision 949)
@@ -42,6 +42,7 @@
 
 void csch_cgrp_render_all(csch_sheet_t *sheet, csch_cgrp_t *grp);
 void csch_cgrp_xform_update(csch_sheet_t *sheet, csch_cgrp_t *grp);
+void csch_cgrp_role_update(csch_sheet_t *sheet, csch_cgrp_t *grp);
 
 /*** standard calls on group refs ***/