diff --git a/src/kiri/init.js b/src/kiri/init.js
index 1785b34e..75dc2372 100644
--- a/src/kiri/init.js
+++ b/src/kiri/init.js
@@ -1194,15 +1194,16 @@
             gcodePre:         UC.newText(LANG.dv_head_s, {title:LANG.dv_head_l, modes:GCODE, size:14, height:3, area:gcode}),
             gcodePost:        UC.newText(LANG.dv_foot_s, {title:LANG.dv_foot_l, modes:GCODE, size:14, height:3, area:gcode}),
 
-            layout:        UC.newGroup(LANG.op_menu, $('mod-prefs'), {inline: true}),
-            expert:        UC.newBoolean(LANG.op_xprt_s, booleanSave, {title:LANG.op_xprt_l}),
-            dark:          UC.newBoolean(LANG.op_dark_s, booleanSave, {title:LANG.op_dark_l}),
-            showOrigin:    UC.newBoolean(LANG.op_show_s, booleanSave, {title:LANG.op_show_l, modes:GCODE}),
-            alignTop:      UC.newBoolean(LANG.op_alig_s, booleanSave, {title:LANG.op_alig_l, modes:CAM}),
-            autoLayout:    UC.newBoolean(LANG.op_auto_s, booleanSave, {title:LANG.op_auto_l}),
-            freeLayout:    UC.newBoolean(LANG.op_free_s, booleanSave, {title:LANG.op_free_l, modes:ALL}),
-            reverseZoom:   UC.newBoolean(LANG.op_invr_s, booleanSave, {title:LANG.op_invr_l, modes:ALL}),
-            units:         UC.newSelect(LANG.op_unit_s, {title: LANG.op_unit_l, modes:CAM}, "units"),
+            layout:         UC.newGroup(LANG.op_menu, $('mod-prefs'), {inline: true}),
+            expert:         UC.newBoolean(LANG.op_xprt_s, booleanSave, {title:LANG.op_xprt_l}),
+            dark:           UC.newBoolean(LANG.op_dark_s, booleanSave, {title:LANG.op_dark_l}),
+            showOrigin:     UC.newBoolean(LANG.op_show_s, booleanSave, {title:LANG.op_show_l, modes:GCODE}),
+            alignTop:       UC.newBoolean(LANG.op_alig_s, booleanSave, {title:LANG.op_alig_l, modes:CAM}),
+            autoLayout:     UC.newBoolean(LANG.op_auto_s, booleanSave, {title:LANG.op_auto_l}),
+            freeLayout:     UC.newBoolean(LANG.op_free_s, booleanSave, {title:LANG.op_free_l, modes:ALL}),
+            reverseZoom:    UC.newBoolean(LANG.op_invr_s, booleanSave, {title:LANG.op_invr_l, modes:ALL}),
+            units:          UC.newSelect(LANG.op_unit_s, {title: LANG.op_unit_l, modes:CAM}, "units"),
+            prefadd:        UC.checkpoint(),
 
             process:             UC.newGroup(LANG.sl_menu, $('settings'), {modes:FDM_LASER}),
             sliceHeight:         UC.newInput(LANG.sl_lahi_s, {title:LANG.sl_lahi_l, convert:UC.toFloat, modes:FDM}),