Sell x/100 option to edge general store.

I am currently training crafting and it is really painful to sell big amounts of amulets to store only by 10 at a time, thats why i suggest to add sell x amount or, sell 100 at a time.

Ah crap. Lol this stuff is client sided coding and I am literally alien to all of that, I can try and look up on it for a tutorial but unless it's a really newb friendly tutorial there's not much I can do here