Solved shift right click event

[Sean Sean]

I was wondering if there was an event where I can have players shift-right click to commit a command to look just like this here
(Note: this is not for a gui)

Current Code:

on right click:
    if tool is pickaxe:
        make player execute "/sellall"

 

[Stegoleopluradon2]

on right click:
    player is holding any pickaxe:
        player is sneaking
        make player execute "/sellall"

You just have to include the is sneaking condition.