diff --git a/js/kiri-driver-cam.js b/js/kiri-driver-cam.js
index bb7dc017..d13542ac 100644
--- a/js/kiri-driver-cam.js
+++ b/js/kiri-driver-cam.js
@@ -1734,6 +1734,17 @@ var gs_kiri_cam = exports;
             points++;
         }
 
+        if (!stripComments) {
+            append(`; Generated by Kiri:Moto ${exports.VERSION}`);
+            append(`; ${new Date().toString()}`);
+            filterEmit(["; Bed left:{left} right:{right} top:{top} bottom:{bottom}"], consts);
+            append(`; Target: ${settings.filter[settings.mode]}`);
+            append("; --- process ---");
+            for (let pk in spro) {
+                append("; " + pk + " = " + spro[pk]);
+            }
+        }
+
         // emit gcode preamble
         filterEmit(gcodes.gcodePre, consts);
 
diff --git a/js/kiri-init.js b/js/kiri-init.js
index 0b654b87..ca109639 100644
--- a/js/kiri-init.js
+++ b/js/kiri-init.js
@@ -1180,8 +1180,8 @@ var gs_kiri_init = exports;
             gcodeFan:         UC.newInput(LANG.dv_fanp_s, {title:LANG.dv_fanp_l, modes:FDM, size:"40%", text:true}),
             gcodeTrack:       UC.newInput(LANG.dv_prog_s, {title:LANG.dv_prog_l, modes:FDM, size:"40%", text:true}),
             gcodeLayer:       UC.newText(LANG.dv_layr_s, {title:LANG.dv_layr_l, modes:FDM, size:14, height: 2}),
-            gcodeSpace:       UC.newBoolean(LANG.dv_tksp_s, null, {title:LANG.dv_tksp_l, modes:CAM_LASER}),
-            gcodeStrip:       UC.newBoolean(LANG.dv_strc_s, null, {title:LANG.dv_strc_l, modes:CAM}),
+            gcodeSpace:       UC.newBoolean(LANG.dv_tksp_s, onBooleanClick, {title:LANG.dv_tksp_l, modes:CAM_LASER}),
+            gcodeStrip:       UC.newBoolean(LANG.dv_strc_s, onBooleanClick, {title:LANG.dv_strc_l, modes:CAM}),
             gcodeFExt:        UC.newInput(LANG.dv_fext_s, {title:LANG.dv_fext_l, modes:CAM_LASER, size:7, text:true}),
             gcodeDwell:       UC.newText(LANG.dv_dwll_s, {title:LANG.dv_dwll_l, modes:CAM, size:14, height:2}),
             gcodeChange:      UC.newText(LANG.dv_tool_s, {title:LANG.dv_tool_l, modes:CAM, size:14, height:2}),