I suggest the command /sell. This would allow you to sell the item in your inventory as long it is at shop. Example /sell 500 that would sell 500 of what is ever in your hand. this would be useful if you are mining and don't want to keep tping back and forth.

 

I support.

 

Even tho the stinky @IN1NJAI supported, I do as well.

 

I like this. Support