Added collapsible skill group & volatile storage.

system/templates/items/item/items.html

@@ -5,7 +5,7 @@
             <a data-item-type="{{type}}" class="item-control item-add" title="{{localize 'l5r5e.global.add'}}"><i class="fas fa-plus"></i></a>
         {{/if}}
     </h3>
-    <ul class="item-list inventory-item-list-{{type}}">
+    <ul class="item-list inventory-item-list-{{type}} {{#ifCond ../data.storeInfos 'includes' (concat 'inventory-item-list-' type)}}toggle-hidden{{/ifCond}}">
         {{#each cat as |item id|}}
             {{> 'systems/l5r5e/templates/items/item/item-entry.html' item=item id=id editable=../../options.editable soft_locked=../../data.data.soft_locked}}
         {{/each}}