Index: crosshair.h
===================================================================
--- crosshair.h	(revision 27113)
+++ crosshair.h	(revision 27114)
@@ -88,7 +88,8 @@
 #define PCB_CH_STATE_THIRD  2
 
 extern pcb_crosshair_t pcb_crosshair;
-extern pcb_mark_t pcb_marked;
+extern pcb_mark_t pcb_marked;  /* the point the user explicitly marked, or in some operations where the operation originally started */
+extern pcb_mark_t pcb_grabbed; /* point where a drag&drop operation started */
 
 void pcb_notify_crosshair_change(pcb_bool changes_complete);
 void pcb_notify_mark_change(pcb_bool changes_complete);