diff --git a/samy.js b/samy.js
index f735a18..b0e57a4 100644
--- a/samy.js
+++ b/samy.js
@@ -94,7 +94,7 @@ document.addEventListener("DOMContentLoaded", () => {
 });
 
 // =======================================================================
-// Onboarding: Select-all left/right columns
+// Onboarding: Select-all left columns
 // =======================================================================
 function toggleColumn(col) {
   const master = document.getElementById(
@@ -129,7 +129,7 @@ function updateSelectAll(col) {
 }
 
 document.addEventListener("DOMContentLoaded", () => {
-  ["left", "right"].forEach((col) => {
+  ["left"].forEach((col) => {
     document
       .querySelectorAll(`#onboardTab input[type=checkbox][data-column="${col}"]`)
       .forEach((cb) =>
@@ -139,6 +139,78 @@ document.addEventListener("DOMContentLoaded", () => {
   });
 });
 
+// =======================================================================
+// Onboarding: Right side split Select All (apps + tweaks)
+// =======================================================================
+
+// apps = only checkboxes marked data-group="apps"
+// tweaks = everything in right column NOT marked as apps
+const ONBOARD_RIGHT_GROUPS = {
+  apps: {
+    masterId: "selectAllAppsCheckbox",
+    selector:
+      '#onboardTab input[type=checkbox][data-column="right"][data-group="apps"]',
+  },
+  tweaks: {
+    masterId: "selectAllTweaksCheckbox",
+    selector:
+      '#onboardTab input[type=checkbox][data-column="right"]:not([data-group="apps"])',
+  },
+};
+
+function toggleOnboardGroup(groupKey) {
+  const cfg = ONBOARD_RIGHT_GROUPS[groupKey];
+  if (!cfg) return;
+
+  const master = document.getElementById(cfg.masterId);
+  if (!master) return;
+
+  const children = document.querySelectorAll(cfg.selector);
+
+  children.forEach((cb) => {
+    cb.checked = master.checked;
+  });
+
+  // fire change handlers so renameComputer / suboptions update properly
+  setTimeout(() => {
+    children.forEach((cb) => cb.dispatchEvent(new Event("change")));
+  }, 0);
+}
+
+function updateOnboardGroupSelectAll(groupKey) {
+  const cfg = ONBOARD_RIGHT_GROUPS[groupKey];
+  if (!cfg) return;
+
+  const master = document.getElementById(cfg.masterId);
+  if (!master) return;
+
+  const children = document.querySelectorAll(cfg.selector);
+
+  if (!children.length) {
+    master.checked = false;
+    return;
+  }
+
+  master.checked = Array.from(children).every((cb) => cb.checked);
+}
+
+document.addEventListener("DOMContentLoaded", () => {
+  Object.keys(ONBOARD_RIGHT_GROUPS).forEach((groupKey) => {
+    const cfg = ONBOARD_RIGHT_GROUPS[groupKey];
+
+    // When any child checkbox changes, refresh that group's Select All
+    document.querySelectorAll(cfg.selector).forEach((cb) => {
+      cb.addEventListener("change", () =>
+        updateOnboardGroupSelectAll(groupKey)
+      );
+    });
+
+    // Initial set
+    updateOnboardGroupSelectAll(groupKey);
+  });
+});
+
+
 // =======================================================================
 // Off-boarding Select All
 // =======================================================================