'winged' button in segments for 'group+next/back'

Hey there. Segments and group+next/back is a cool tool for selecting. I would like to see a 'winged' button to increase its power even more.
Example:
-fixtures 1>10; segments 2
-when pressing group+next you get 1+2, 3+4, 5+6, 7+8 and 9+10
-when activating 'winged' you will get 1+10, 2+9, 3+8, 4+7, 5+6

So you can select symmetrical pretty quick.