In a project I'm working in we're using EPiServer categories, or more correctly: lots of categories! And like all others who have work with many categories with sub-categories, sub-sub-categories etc., I thought that there must be a better way to display them. So I made this little adapter.
All you need to do is to download this dll Epinova.Adapters and add it to your bin folder.
In your App_Browsers folder you should find the AdpaterMappings.browser file. In this add the following line:
<adapter controlType="EPiServer.Web.PropertyControls.PropertyCategoryControl" adapterType="Epinova.Adapters.PropertyCategoryAdapter" />
After this your category list should go from this: