[Description] group by prop name, optionally preceeded with '-' or to sort in descending or nothing for ascending order. The group argument can have several props separated with comma. [Argument] 
@group
@ s o r t
@ g r o u p
@ c o l u m n s
@ f i l t e r
p r o p n a m e
@ s e a r c h _ t e x t