diff --git a/src/kiri/core/conf.js b/src/kiri/core/conf.js
index 2e9aa772..23ae1477 100644
--- a/src/kiri/core/conf.js
+++ b/src/kiri/core/conf.js
@@ -556,6 +556,7 @@ export const conf = {
                 camTabsDepth: 5,
                 camTabsMidline: false,
                 camDepthFirst: false,
+                camInnerFirst: false,
                 camEaseDown: false,
                 camEaseAngle: 10,
                 camOriginTop: true,
diff --git a/src/kiri/mode/cam/init-menu.js b/src/kiri/mode/cam/init-menu.js
index 69becf60..9cc96073 100644
--- a/src/kiri/mode/cam/init-menu.js
+++ b/src/kiri/mode/cam/init-menu.js
@@ -97,6 +97,7 @@ export function menu() {
     camConventional:     newBoolean(LANG.ou_conv_s, onBooleanClick, {title:LANG.ou_conv_l}),
     camEaseDown:         newBoolean(LANG.cr_ease_s, onBooleanClick, {title:LANG.cr_ease_l}),
     camDepthFirst:       newBoolean(LANG.ou_depf_s, onBooleanClick, {title:LANG.ou_depf_l}),
+    camInnerFirst:       newBoolean(LANG.ou_inrf_s, onBooleanClick, {title:LANG.ou_inrf_l}),
     camToolInit:         newBoolean(LANG.ou_toin_s, onBooleanClick, {title:LANG.ou_toin_l}),
     separator:           newBlank({ class:"set-sep", driven }),
     camFirstZMax:        newBoolean(LANG.ou_z1st_s, onBooleanClick, {title:LANG.ou_z1st_l}),
diff --git a/src/kiri/mode/cam/prepare.js b/src/kiri/mode/cam/prepare.js
index d57bf66e..df6ec5f3 100644
--- a/src/kiri/mode/cam/prepare.js
+++ b/src/kiri/mode/cam/prepare.js
@@ -85,6 +85,7 @@ export function prepEach(widget, settings, print, firstPoint, update) {
         easeDown = process.camEaseDown,
         easeAngle = process.camEaseAngle,
         depthFirst = process.camDepthFirst,
+        innerFirst = process.camInnerFirst,
         engageFactor = process.camFullEngage,
         arcTolerance = process.camArcTolerance,
         arcRes = toRadians(process.camArcResolution),
@@ -719,7 +720,10 @@ export function prepEach(widget, settings, print, firstPoint, update) {
         setTool(tool, rate, plunge);
         let traceTool = new Tool(settings, tool);
         let traceToolDiam = traceTool.fluteDiameter();
-        printPoint = poly2polyEmit(slice.camLines, printPoint, polyEmit, { swapdir: false });
+        printPoint = poly2polyEmit(slice.camLines, printPoint, polyEmit, {
+            swapdir: false,
+            weight: innerFirst
+        });
         newLayer();
     }
 
diff --git a/src/kiri/mode/cam/slice.js b/src/kiri/mode/cam/slice.js
index 6a7dfd71..ba06f5d6 100644
--- a/src/kiri/mode/cam/slice.js
+++ b/src/kiri/mode/cam/slice.js
@@ -87,6 +87,8 @@ export async function cam_slice(settings, widget, onupdate, ondone) {
             bottom_z, bottom_cut
         }, 3);
 
+        console.log({ track, bounds, stock, workarea });
+
         return structuredClone(workarea);
     };
 
diff --git a/src/kiri/run/engine.js b/src/kiri/run/engine.js
index abd69b2a..00824cbe 100644
--- a/src/kiri/run/engine.js
+++ b/src/kiri/run/engine.js
@@ -126,6 +126,10 @@ class Engine {
         return this;
     }
 
+    setTopOffset(offset = 0) {
+        this.topOffset = offset;
+    }
+
     setOrigin(x, y, z) {
         this.settings.origin = { x, y, z };
         return this;
@@ -152,6 +156,7 @@ class Engine {
     }
 
     slice() {
+        this.widget.setTopZ(this.settings.stock.z - (this.topOffset || 0));
         return new Promise((accept, reject) => {
             client.clear();
             client.sync([this.widget]);
diff --git a/web/kiri/engine.html b/web/kiri/engine.html
index da417539..40b62df6 100644
--- a/web/kiri/engine.html
+++ b/web/kiri/engine.html
@@ -99,7 +99,11 @@
             });
             edit.session.setTabSize(4);
             edit.session.setUseSoftTabs(true);
-            let FDMExample = loadExample(demoFDM)
+            if (localStorage.engineCode) {
+                edit.session.setValue(localStorage.engineCode);
+            } else {
+                loadExample(demoFDM);
+            }
         }
         function display_message(msg) {
             $('gfoot').innerText = msg ? Object.keys(msg).join(' - ') : '';
@@ -110,7 +114,7 @@
             $('dfoot').style.display = 'block';
             $('gfoot').style.display = '';
         }
-        function loadExample(func){
+        function loadExample(func) {
             let fnstr = func.toString().split("\n");
             edit.session.setValue(
                 fnstr
@@ -124,6 +128,7 @@
             $('gfoot').style.display = 'block';
             let code = edit.session.getValue();
             eval(`(function(){${code}})()`);
+            localStorage.engineCode = code;
         }
         function demoFDM() {
             new Engine()
diff --git a/web/kiri/lang/en.js b/web/kiri/lang/en.js
index bc713531..fdaa35b3 100644
--- a/web/kiri/lang/en.js
+++ b/web/kiri/lang/en.js
@@ -790,6 +790,8 @@ self.lang['en-us'] = {
     ou_conv_l:      ["milling direction","uncheck for 'climb'"],
     ou_depf_s:      "depth first",
     ou_depf_l:      ["optimize pocket cuts","with depth priority"],
+    ou_inrf_s:      "inner first",
+    ou_inrf_l:      ["always cut inner to outer"],
     ou_toin_s:      "tool init",
     ou_toin_l:      "add tool change with first operation. when disabled, the gcode assumes the first tool is loaded and offset probed",
     ou_forz_s:      "force z max",