1-Create a foulder. Lets name this folder 'shoes'
2-In your clothes list, decide on the Item you want to move to that folder.
3-There is a gray vertical bar on the far right side of the Item. Left click that Drag to the folder and drop
4-Sometimes if you are moving a few items in one session, you need to refresh your browser to get it working again.
hope this helps
Laz