SHF tools button: Similar to MGtools icon in MGtools UI. It is used to manage the bar itself. Click it to minimize / restore Shelf bar.

Buttons except the first button: These are all shelves embed by user.

MGshelf Help..: Show MGshelf help.

Tips : Right click on the button except the first buton:

edit..: will load MGshelf manager to edit current shelf.

delete: will simply delete this shelf.