SCH/PCB: Set Swap hotkey to 'S'

* Move Add Sheet to Shift+S in Schematic Editor
* Move Set Grid Origin to Shift+S in PCB Editor

common/tool/actions.cpp

@@ -463,7 +463,7 @@ TOOL_ACTION ACTIONS::gridPrev( "common.Control.gridPrev",
 
 TOOL_ACTION ACTIONS::gridSetOrigin( "common.Control.gridSetOrigin",
         AS_GLOBAL,
-        'S', LEGACY_HK_NAME( "Set Grid Origin" ),
+        MD_SHIFT + 'S', LEGACY_HK_NAME( "Set Grid Origin" ),
         _( "Grid Origin" ), _( "Set the grid origin point" ),
         BITMAPS::grid_select_axis );
 

eeschema/tools/ee_actions.cpp

@@ -328,7 +328,7 @@ TOOL_ACTION EE_ACTIONS::placeHierLabel( "eeschema.InteractiveDrawing.placeHierar
 
 TOOL_ACTION EE_ACTIONS::drawSheet( "eeschema.InteractiveDrawing.drawSheet",
         AS_GLOBAL,
-        'S', LEGACY_HK_NAME( "Add Sheet" ),
+        MD_SHIFT + 'S', LEGACY_HK_NAME( "Add Sheet" ),
         _( "Add Sheet" ), _( "Add a hierarchical sheet" ),
         BITMAPS::add_hierarchical_subsheet, AF_ACTIVATE, (void*) SCH_SHEET_T );
 
@@ -420,7 +420,8 @@ TOOL_ACTION EE_ACTIONS::mirrorH( "eeschema.InteractiveEdit.mirrorH",
         BITMAPS::mirror_h );
 
 TOOL_ACTION EE_ACTIONS::swap( "eeschema.InteractiveEdit.swap",
-        AS_GLOBAL, 0, "",
+        AS_GLOBAL,
+        'S', "",
         _( "Swap" ), _( "Swaps selected items' positions" ),
         BITMAPS::swap_layer );
 

pcbnew/tools/pcb_actions.cpp

@@ -326,7 +326,8 @@ TOOL_ACTION PCB_ACTIONS::mirror( "pcbnew.InteractiveEdit.mirror",
         BITMAPS::mirror_h );
 
 TOOL_ACTION PCB_ACTIONS::swap( "pcbnew.InteractiveEdit.swap",
-        AS_GLOBAL, 0, "",
+        AS_GLOBAL,
+        'S', "",
         _( "Swap" ), _( "Swaps selected items' positions" ),
         BITMAPS::swap_layer );