Apart from the given categories(keys, wallet, etc.), you can customize your own category for AIKO, such as camera, sun glasses, etc. Follow below steps.
Step 1 Tap on the AIKO you want to customize category on the list.
Step 2 Tap on 'Category'.
Step 3 Tap on 'Other' and input your own category name.
Step 4 Tap on 'Save'.