Index: trunk/doc/conf/tree/editor.html
===================================================================
--- trunk/doc/conf/tree/editor.html	(revision 7516)
+++ trunk/doc/conf/tree/editor.html	(revision 7517)
@@ -23,6 +23,7 @@
 <tr><td> draw_grid <td><a href="CFN_BOOLEAN.html"> boolean </a><td> 0 <td> draw grid points
 <tr><td> all_direction_lines <td><a href="CFN_BOOLEAN.html"> boolean </a><td> 0 <td> enable lines to all directions
 <tr><td> rubber_band_mode <td><a href="CFN_BOOLEAN.html"> boolean </a><td> 0 <td> move, rotate use rubberband connections
+<tr><td> rubber_band_keep_midlinedir <td><a href="CFN_BOOLEAN.html"> boolean </a><td> 0 <td> keep line direction when a middle line is moved
 <tr><td> swap_start_direction <td><a href="CFN_BOOLEAN.html"> boolean </a><td> 0 <td> change starting direction after each click
 <tr><td> show_drc <td><a href="CFN_BOOLEAN.html"> boolean </a><td> 0 <td> show drc region on crosshair
 <tr><td> auto_drc <td><a href="CFN_BOOLEAN.html"> boolean </a><td> 0 <td> when set, PCB doesn't let you place copper that violates DRC.
Index: trunk/src/conf_core.h
===================================================================
--- trunk/src/conf_core.h	(revision 7516)
+++ trunk/src/conf_core.h	(revision 7517)
@@ -36,6 +36,7 @@
 		CFT_BOOLEAN draw_grid;             /* draw grid points */
 		CFT_BOOLEAN all_direction_lines;   /* enable lines to all directions */
 		CFT_BOOLEAN rubber_band_mode;      /* move, rotate use rubberband connections */
+		CFT_BOOLEAN rubber_band_keep_midlinedir; /* keep line direction when a middle line is moved */
 		CFT_BOOLEAN swap_start_direction;  /* change starting direction after each click */
 		CFT_BOOLEAN show_drc;              /* show drc region on crosshair */
 		CFT_BOOLEAN auto_drc;              /* when set, PCB doesn't let you place copper that violates DRC. */
Index: trunk/src/pcb-conf.lht
===================================================================
--- trunk/src/pcb-conf.lht	(revision 7516)
+++ trunk/src/pcb-conf.lht	(revision 7517)
@@ -47,6 +47,7 @@
 			all_direction_lines = 0
 			line_refraction = 1
 			rubber_band_mode = 0
+			rubber_band_keep_midlinedir = 0
 			swap_start_direction = 0
 			show_drc = 0
 			auto_drc = 0
Index: trunk/src/pcb-menu-gtk.lht
===================================================================
--- trunk/src/pcb-menu-gtk.lht	(revision 7516)
+++ trunk/src/pcb-menu-gtk.lht	(revision 7517)
@@ -263,6 +263,7 @@
 				ha:Libstroke gestures on middle button = { checked=editor/enable_stroke; action=conf(toggle, editor/enable_stroke, design) }
 				-
 				ha:Rubber band mode                 = { checked=editor/rubber_band_mode; action=conf(toggle, editor/rubber_band_mode, design) }
+				ha:Rubber band keeps middle line dir= { checked=editor/rubber_band_keep_midlinedir; action=conf(toggle, editor/rubber_band_keep_midlinedir, design) }
 				ha:Require unique element names     = { checked=editor/unique_names; action=conf(toggle, editor/unique_names, design) }
 				ha:Auto-zero delta measurements     = { checked=editor/local_ref; action=conf(toggle, editor/local_ref, design) }
 				ha:New lines, arcs clear polygons   = { checked=editor/clear_line; action=conf(toggle, editor/clear_line, design) }
Index: trunk/src/pcb-menu-lesstif.lht
===================================================================
--- trunk/src/pcb-menu-lesstif.lht	(revision 7516)
+++ trunk/src/pcb-menu-lesstif.lht	(revision 7517)
@@ -236,6 +236,7 @@
 				ha:Auto enforce DRC clearance = { checked=editor/auto_drc; action=conf(toggle, editor/auto_drc, design) }
 				-
 				ha:Rubber band mode = { checked=editor/rubber_band_mode; action=conf(toggle, editor/rubber_band_mode, design) }
+				ha:Rubber band keeps middle line dir= { checked=editor/rubber_band_keep_midlinedir; action=conf(toggle, editor/rubber_band_keep_midlinedir, design) }
 				ha:Require unique element names = { checked=editor/unique_names; action=conf(toggle, editor/unique_names, design) }
 				ha:Auto-zero delta measurements = { checked=editor/local_ref; action=conf(toggle, editor/local_ref, design) }
 				ha:New lines, arcs clear polygons = { checked=editor/clear_line; action=conf(toggle, editor/clear_line, design) }
Index: trunk/src/pcb-menu-mkey.lht
===================================================================
--- trunk/src/pcb-menu-mkey.lht	(revision 7516)
+++ trunk/src/pcb-menu-mkey.lht	(revision 7517)
@@ -263,6 +263,7 @@
 				ha:Libstroke gestures on middle button = { checked=editor/enable_stroke; action=conf(toggle, editor/enable_stroke, design) }
 				-
 				ha:Rubber band mode                 = { checked=editor/rubber_band_mode; action=conf(toggle, editor/rubber_band_mode, design) }
+				ha:Rubber band keeps middle line dir= { checked=editor/rubber_band_keep_midlinedir; action=conf(toggle, editor/rubber_band_keep_midlinedir, design) }
 				ha:Require unique element names     = { checked=editor/unique_names; action=conf(toggle, editor/unique_names, design) }
 				ha:Auto-zero delta measurements     = { checked=editor/local_ref; action=conf(toggle, editor/local_ref, design) }
 				ha:New lines, arcs clear polygons   = { checked=editor/clear_line; action=conf(toggle, editor/clear_line, design) }
Index: trunk/src_plugins/rubberband_orig/rubberband.c
===================================================================
--- trunk/src_plugins/rubberband_orig/rubberband.c	(revision 7516)
+++ trunk/src_plugins/rubberband_orig/rubberband.c	(revision 7517)
@@ -902,6 +902,9 @@
 	pcb_coord_t *x = argv[3].d.p; /* Return argument */
 	pcb_coord_t *y = argv[4].d.p; /* Return argument */
 
+	if (!conf_core.editor.rubber_band_keep_midlinedir)
+		return;
+
 	for (i=0; i<rbnd->RubberbandN; i++) {
 		rbnd->Rubberband[i].delta_is_valid = 0;
 	}