diff --git a/src/App.vue b/src/App.vue
index 890bc2f..7fe9ce5 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -11,6 +11,7 @@ import { SCRIPT_TAGGING, LINT_RULES } from './config';
 let appLoaded = ref(false);
 let showUndefined = ref(false);
 let showPlaceholderDialog = ref(false);
+let showScriptStarter = ref(false);
 let vfDisplayMode = ref<'animated' | 'list'>('animated');
 let commitRef = ref('refs/heads/main');
 
@@ -110,6 +111,7 @@ onBeforeMount(async () => {
       <button @click="addUntaggedAxesPanel()">Untagged axes</button>
       <button @click="gf?.exportTaggings()">Save changes</button>
       <button @click="showPlaceholderDialog = true">Placeholder Tags</button>
+      <button v-if="SCRIPT_TAGGING" @click="showScriptStarter = true">Start script tagging</button>
       <input type="checkbox" v-model="showUndefined">Show all</input>
       <button @click="vfDisplayMode = vfDisplayMode === 'animated' ? 'list' : 'animated'">
         VF: {{ vfDisplayMode === 'animated' ? 'Animated' : 'List' }}
@@ -118,6 +120,7 @@ onBeforeMount(async () => {
         style="width: 280px; font-family: monospace;" /></label>
       <span v-if="SCRIPT_TAGGING" class="script-mode">Script tagging: saves to families-scripts.csv</span>
       <placeholder-tag-adder v-if="showPlaceholderDialog" :gf="gf" @close="showPlaceholderDialog = false" />
+      <script-starter v-if="showScriptStarter" :gf="gf" @close="showScriptStarter = false" />
       <div style="display: flex; flex-direction: row; width: 100vw; min-height: 100vh;">
         <div v-for="(panel, idx) in panels" :key="idx"
           :style="{ flex: '1 1 0', minWidth: 0, borderRight: idx < panels.length - 1 ? '1px solid #eee' : 'none', height: '100vh', overflow: 'auto' }">
diff --git a/src/components/ScriptStarter.vue b/src/components/ScriptStarter.vue
new file mode 100644
index 0000000..e45bcc2
--- /dev/null
+++ b/src/components/ScriptStarter.vue
@@ -0,0 +1,191 @@
+<script setup lang="ts">
+import { ref, computed } from 'vue';
+import { GF, StaticTagging, VariableTagging } from '../models';
+import type { Font, Location, Tagging } from '../models';
+
+// Scripts build only. One dialog to set up a tagger for a script: every family
+// that supports the script gets a 0-score placeholder for each chosen category,
+// tagged for that script. Families with a wght axis get a variable placeholder
+// at the wght extremes, crossed with the wdth extremes when the family has wdth.
+// Everything else gets a static placeholder. A family that already has any
+// tagging for the category, for all scripts or for this one, gets nothing: the
+// tagger reviews those on a second pass and uses Duplicate where the script
+// needs its own scores.
+
+const props = defineProps({
+  gf: {
+    type: GF,
+    required: true
+  }
+});
+
+const emit = defineEmits(['close']);
+
+// The categories a script tagger starts with. Change the prefixes to widen the set.
+const DEFAULT_CATEGORY_PREFIXES = ['/Expressive/', '/Quality/'];
+
+const script = ref<string | null>(null);
+const categories = ref<string[]>(
+  props.gf.uniqueTagNames().filter(name => DEFAULT_CATEGORY_PREFIXES.some(p => name.startsWith(p)))
+);
+
+const scriptOptions = computed(() => {
+  const all = new Set<string>();
+  for (const family of props.gf.families) {
+    for (const s of family.subsets) all.add(s);
+  }
+  return [...all].sort();
+});
+
+const families = computed<Font[]>(() => {
+  if (!script.value) return [];
+  return props.gf.families.filter(f => f.subsets.includes(script.value!));
+});
+
+// The grid axes a family is scored on: wght, plus wdth when present.
+function gridAxes(family: Font): string[] {
+  if (!family.axis('wght')) return [];
+  return family.axis('wdth') ? ['wght', 'wdth'] : ['wght'];
+}
+
+// One location per corner of the grid, each axis at its min and max.
+function cornerLocations(family: Font, axes: string[]): Location[] {
+  let locations: Location[] = [{}];
+  for (const axisName of axes) {
+    const axis = family.axis(axisName)!;
+    const next: Location[] = [];
+    for (const location of locations) {
+      next.push({ ...location, [axisName]: axis.min });
+      next.push({ ...location, [axisName]: axis.max });
+    }
+    locations = next;
+  }
+  return locations;
+}
+
+interface Plan {
+  staticFamilies: number;
+  wghtFamilies: number;
+  wghtWdthFamilies: number;
+  newTaggings: number;
+  newRows: number;
+  skipped: number;
+}
+
+// What OK will do, so the tagger can see the size of it first.
+const plan = computed<Plan>(() => {
+  const p: Plan = { staticFamilies: 0, wghtFamilies: 0, wghtWdthFamilies: 0, newTaggings: 0, newRows: 0, skipped: 0 };
+  if (!script.value) return p;
+  for (const family of families.value) {
+    const axes = gridAxes(family);
+    if (axes.length === 0) p.staticFamilies++;
+    else if (axes.length === 1) p.wghtFamilies++;
+    else p.wghtWdthFamilies++;
+    const rows = axes.length === 0 ? 1 : 2 ** axes.length;
+    for (const categoryName of categories.value) {
+      if (family.hasTagging(categoryName)) {
+        p.skipped++;
+      } else {
+        p.newTaggings++;
+        p.newRows += rows;
+      }
+    }
+  }
+  return p;
+});
+
+function submit() {
+  if (!script.value) return;
+  const scripts = [script.value];
+  for (const family of families.value) {
+    const axes = gridAxes(family);
+    for (const categoryName of categories.value) {
+      const tag = props.gf.tags[categoryName];
+      if (!tag) continue;
+      // Any tagging for the category, even one scored 0, means a person already
+      // looked at it. Leave it alone.
+      if (family.hasTagging(categoryName)) continue;
+      let tagging: Tagging;
+      if (axes.length === 0) {
+        tagging = new StaticTagging(family, tag, 0, [...scripts]);
+      } else {
+        const scores = cornerLocations(family, axes).map(location => ({ location, score: 0 }));
+        tagging = new VariableTagging(family, tag, scores, [...scripts]);
+      }
+      tagging.placeholder = true;
+      family.taggings.push(tagging);
+    }
+  }
+  emit('close');
+}
+</script>
+
+<template>
+  <div class="dialog-overlay" @click.self="emit('close')">
+    <div class="dialog">
+      <h3>Start script tagging</h3>
+      <p class="hint">
+        Adds a 0-score placeholder for every family that supports the script and every
+        category below. Families with a wght axis get a variable placeholder at the wght
+        extremes, and at the wdth extremes too when they have wdth. Families that already
+        have any tagging for a category, for all scripts or for this script, are skipped.
+      </p>
+
+      <h4>Script</h4>
+      <v-select v-model="script" :options="scriptOptions" placeholder="Choose one script"></v-select>
+
+      <h4>Categories</h4>
+      <v-select v-model="categories" multiple :options="gf.uniqueTagNames()"></v-select>
+
+      <div v-if="script" class="plan">
+        <div><b>{{ families.length }}</b> families support {{ script }}:
+          {{ plan.staticFamilies }} static, {{ plan.wghtFamilies }} with wght, {{ plan.wghtWdthFamilies }} with wght and wdth.</div>
+        <div>OK adds <b>{{ plan.newTaggings }}</b> placeholders ({{ plan.newRows }} CSV rows)
+          and skips {{ plan.skipped }} that already exist.</div>
+      </div>
+
+      <hr />
+      <button @click="submit" :disabled="!script || categories.length === 0 || plan.newTaggings === 0">OK</button>
+      <button @click="emit('close')">Cancel</button>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.dialog-overlay {
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background: rgba(0, 0, 0, 0.3);
+  z-index: 100;
+  display: flex;
+  align-items: flex-start;
+  justify-content: center;
+}
+
+.dialog {
+  background: white;
+  padding: 20px;
+  border-radius: 8px;
+  max-width: 600px;
+  width: 100%;
+  margin-top: 50px;
+  max-height: 80vh;
+  overflow: auto;
+}
+
+.hint {
+  margin: 4px 0 8px;
+  font-size: 0.85em;
+  color: #555;
+}
+
+.plan {
+  margin-top: 12px;
+  padding: 8px 12px;
+  background: #f3f4f6;
+  border-radius: 6px;
+}
+</style>
diff --git a/src/main.ts b/src/main.ts
index 5b17c14..b2fcd3e 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -16,6 +16,7 @@ import Todo from "./components/Todo.vue";
 import UntaggedFamilies from "./components/UntaggedFamilies.vue";
 import UntaggedAxes from "./components/UntaggedAxes.vue";
 import PlaceholderTagAdder from "./components/PlaceholderTagAdder.vue";
+import ScriptStarter from "./components/ScriptStarter.vue";
 import vSelect from "vue-select";
 
 Vue.component("v-select", vSelect);
@@ -32,6 +33,7 @@ Vue.component("untagged-families", UntaggedFamilies);
 Vue.component("untagged-axes", UntaggedAxes);
 Vue.component("sample-text", SampleText);
 Vue.component("placeholder-tag-adder", PlaceholderTagAdder);
+Vue.component("script-starter", ScriptStarter);
 
 var app = new Vue({
   el: "#app",