diff --git a/src/components/Dropdown.vue b/src/components/Dropdown.vue
index ce68a8e..4b3e5bb 100644
--- a/src/components/Dropdown.vue
+++ b/src/components/Dropdown.vue
@@ -41,12 +41,11 @@ useEventListener('keyup', e => {
 
 <template>
     <div ref="root" class="dropdown" :class="{'dropdown-open': isOpen, 'dropdown-close': !isOpen}" v-on-click-outside="[doAutoClose, { ignore: [floating] }]">
-        <button @click="isOpen = !isOpen" class="cursor-pointer">
+        <button @click="isOpen = !isOpen" class="flex items-center cursor-pointer border-none bg-transparent hover:bg-transparent p-0">
             <Transition
+                mode="out-in"
                 enter-active-class="transition-transform"
-                enter-from-class="rotate-180"
-                leave-active-class="hidden"
-                leave-to-class="rotate-180">
+                enter-from-class="rotate-180">
                 <ChevronDownIcon v-if="!isOpen" class="chevron" />
                 <ChevronUpIcon v-else class="chevron" />
             </Transition>
diff --git a/src/pages/rules/EditRuleBook.vue b/src/pages/rules/EditRuleBook.vue
index b685c64..1dd44ee 100644
--- a/src/pages/rules/EditRuleBook.vue
+++ b/src/pages/rules/EditRuleBook.vue
@@ -1,14 +1,16 @@
 <script setup lang="ts">
 import {computed, ref, watchEffect} from "vue";
-import {computedAsync, useEventListener} from "@vueuse/core";
+import {useEventListener} from "@vueuse/core";
 import log from "loglevel";
 import {ScriptEditor, useRuleBookStore} from "@/rules";
 import {PlusIcon, TrashIcon} from "@heroicons/vue/24/outline";
+import {Dropdown} from "@/components";
 import {isMain, Ledger, LedgerSelect, systemLedger, useLedgersStore} from "@/ledger";
 import {useCharactersStore} from "@/characters";
 import {CorporationLabel, useCorporationsStore} from "@/corporations";
 import {RuleScriptRequest} from "@/generated/mammon";
 import {toast} from "@/toast";
+import {confirm} from "@/confirm";
 
 type LedgerScopeEntry = { ref: string; ledger: Ledger };
 type CharacterScopeEntry = { ref: string; characterId: number };
@@ -33,6 +35,11 @@ const ledgersToUse = computed(() => [systemLedger, ...ledgersStore.ledgers.filte
 
 const scripts = ref<ScriptDraft[]>([]);
 const selectedIndex = ref(0);
+const scopesExpanded = ref(true);
+const ledgersExpanded = ref(true);
+const charactersExpanded = ref(true);
+const corporationsExpanded = ref(true);
+const walletDivisionsExpanded = ref(true);
 const selected = computed<ScriptDraft | undefined>(() => scripts.value[selectedIndex.value]);
 
 watchEffect(() => {
@@ -71,7 +78,13 @@ const addScript = () => {
   selectedIndex.value = scripts.value.length - 1;
 };
 
-const removeScript = (index: number) => {
+const removeScript = async (index: number) => {
+  const script = scripts.value[index];
+
+  if (script?.script.trim() && !await confirm({message: `Delete script "${script.name || '(unnamed)'}"? It still has content.`, danger: true})) {
+    return;
+  }
+
   scripts.value = scripts.value.toSpliced(index, 1);
   if (selectedIndex.value >= scripts.value.length) {
     selectedIndex.value = Math.max(0, scripts.value.length - 1);
@@ -90,7 +103,18 @@ const removeCorporationScope = (index: number) => { if (selected.value) selected
 const addWalletDivisionScope = () => selected.value?.walletDivisions.push({ref: '', corporationId: 0, division: 1});
 const removeWalletDivisionScope = (index: number) => { if (selected.value) selected.value.walletDivisions = selected.value.walletDivisions.toSpliced(index, 1); };
 
-const resolvedCorporation = (corporationId: number) => computedAsync(async () => corporationId ? await corporationsStore.findById(corporationId) : undefined, undefined);
+watchEffect(() => {
+  const corporationIds = new Set([
+    ...(selected.value?.corporations.map(entry => entry.corporationId) ?? []),
+    ...(selected.value?.walletDivisions.map(entry => entry.corporationId) ?? []),
+  ]);
+
+  for (const corporationId of corporationIds) {
+    if (corporationId) {
+      corporationsStore.findById(corporationId);
+    }
+  }
+});
 
 const save = () => ruleBookStore.update(
     scripts.value
@@ -117,29 +141,29 @@ useEventListener(window, 'keydown', (event: KeyboardEvent) => {
 </script>
 
 <template>
-  <div class="flex mb-2 mt-4 h-[calc(100vh-4.5rem)]">
+  <div class="flex mb-2 mt-4 h-[calc(100vh-1.5rem)]">
     <div class="flex flex-col me-4 w-48 shrink-0">
       <div class="grow overflow-y-auto">
         <div v-for="(script, index) in scripts" :key="index"
-             class="flex items-center mb-1 px-1 py-0.5 cursor-pointer"
-             :class="{'bg-neutral-700': index === selectedIndex}"
+             class="flex items-center mb-1 px-1 py-0.5 border-l-4 cursor-pointer"
+             :class="index === selectedIndex ? 'border-emerald-500' : 'border-transparent'"
              @click="selectedIndex = index">
           <span class="grow truncate">{{ script.name || '(unnamed)' }}</span>
           <button class="btn-icon text-amber-700 hover:text-amber-600" @click.stop="removeScript(index)"><TrashIcon /></button>
         </div>
+        <button class="btn-icon flex items-center" @click="addScript"><PlusIcon /> Add script</button>
       </div>
-      <button class="btn-icon mt-2" @click="addScript"><PlusIcon /> Add script</button>
     </div>
 
     <div v-if="selected" class="flex flex-col grow min-h-0">
-      <div class="border-b-1 mb-2">
+      <div class="border-b-1 mb-2 pb-2">
         Name: <input class="me-1" type="text" v-model="selected.name" />
       </div>
 
-      <div class="border-b-1">
-        Scopes:
-        <div class="ms-4 mt-2">
-          Ledgers:
+      <Dropdown inline :auto-close="false" v-model:open="scopesExpanded" class="mb-2">
+        <template #button>Scopes</template>
+        <Dropdown inline :auto-close="false" v-model:open="ledgersExpanded" class="ms-4 mt-2">
+          <template #button>Ledgers</template>
           <div class="flex flex-wrap items-center mt-2">
             <div class="flex items-center mb-2 me-2" v-for="(entry, index) in selected.ledgers" :key="index">
               <input class="me-1" type="text" v-model="entry.ref" />
@@ -151,10 +175,10 @@ useEventListener(window, 'keydown', (event: KeyboardEvent) => {
               <button class="btn-icon" @click="addLedgerScope"><PlusIcon /></button>
             </div>
           </div>
-        </div>
+        </Dropdown>
 
-        <div class="ms-4 mt-2">
-          Characters:
+        <Dropdown inline :auto-close="false" v-model:open="charactersExpanded" class="ms-4 mt-2">
+          <template #button>Characters</template>
           <div class="flex flex-wrap items-center mt-2">
             <div class="flex items-center mb-2 me-2" v-for="(entry, index) in selected.characters" :key="index">
               <input class="me-1" type="text" v-model="entry.ref" />
@@ -168,55 +192,53 @@ useEventListener(window, 'keydown', (event: KeyboardEvent) => {
               <button class="btn-icon" @click="addCharacterScope"><PlusIcon /></button>
             </div>
           </div>
-        </div>
+        </Dropdown>
 
-        <div class="ms-4 mt-2">
-          Corporations:
+        <Dropdown inline :auto-close="false" v-model:open="corporationsExpanded" class="ms-4 mt-2">
+          <template #button>Corporations</template>
           <div class="flex flex-wrap items-center mt-2">
             <div class="flex items-center mb-2 me-2" v-for="(entry, index) in selected.corporations" :key="index">
               <input class="me-1" type="text" v-model="entry.ref" />
               <span class="me-1">:</span>
               <input class="me-1 w-32" type="number" v-model.number="entry.corporationId" placeholder="Corporation ID" />
-              <CorporationLabel class="me-1" :corporation-id="entry.corporationId" :corporation="resolvedCorporation(entry.corporationId).value" :size="16" v-if="entry.corporationId" />
+              <CorporationLabel class="me-1" :corporation-id="entry.corporationId" :corporation="corporationsStore.corporations[entry.corporationId]" :size="16" v-if="entry.corporationId" />
               <button class="btn-icon text-amber-700 hover:text-amber-600" @click="removeCorporationScope(index)"><TrashIcon /></button>
             </div>
             <div class="flex items-center mb-2">
               <button class="btn-icon" @click="addCorporationScope"><PlusIcon /></button>
             </div>
           </div>
-        </div>
+        </Dropdown>
 
-        <div class="ms-4 mt-2 mb-2">
-          Wallet Divisions:
+        <Dropdown inline :auto-close="false" v-model:open="walletDivisionsExpanded" class="ms-4 mt-2 mb-2">
+          <template #button>Wallet Divisions</template>
           <div class="flex flex-wrap items-center mt-2">
             <div class="flex items-center mb-2 me-2" v-for="(entry, index) in selected.walletDivisions" :key="index">
               <input class="me-1" type="text" v-model="entry.ref" />
               <span class="me-1">:</span>
               <input class="me-1 w-32" type="number" v-model.number="entry.corporationId" placeholder="Corporation ID" />
               <input class="me-1 w-16" type="number" min="1" max="7" v-model.number="entry.division" placeholder="Division" />
-              <CorporationLabel class="me-1" :corporation-id="entry.corporationId" :corporation="resolvedCorporation(entry.corporationId).value" :division="entry.division" :size="16" v-if="entry.corporationId" />
+              <CorporationLabel class="me-1" :corporation-id="entry.corporationId" :corporation="corporationsStore.corporations[entry.corporationId]" :division="entry.division" :size="16" v-if="entry.corporationId" />
               <button class="btn-icon text-amber-700 hover:text-amber-600" @click="removeWalletDivisionScope(index)"><TrashIcon /></button>
             </div>
             <div class="flex items-center mb-2">
               <button class="btn-icon" @click="addWalletDivisionScope"><PlusIcon /></button>
             </div>
           </div>
-        </div>
-      </div>
+        </Dropdown>
+      </Dropdown>
 
       <div class="flex flex-col grow min-h-0 border-b-1">
         Script:
         <ScriptEditor class="mt-2 mb-2" v-model="scriptText" :scope="editorScope" />
       </div>
+
+      <div class="mt-2 justify-end flex">
+        <button @click="save">Save</button>
+      </div>
     </div>
     <div v-else class="flex grow items-center justify-center text-neutral-500">
       No scripts yet
     </div>
-
-    <div class="mt-2 justify-end flex" v-if="selected">
-      <div>
-        <button @click="save">Save</button>
-      </div>
-    </div>
   </div>
 </template>