You can now give each supplier attribute a category. The category belongs to the attribute itself, so an attribute appears under the same category wherever you see it.
In Settings, you can filter and sort your supplier attributes by category, which makes long attribute lists easier to manage.
On a supplier's profile, the Attributes tab now groups attributes by category instead of showing one long list. Compliance results use the same categories, so the grouping you see there matches the rest of Brand Cloud.