Shift-click to buy
 

In my garrison trading post, there is a vendor that sells various crafting reagents for garrison resources. At most other vendors, I can shift-click to enter an amount to buy but not with this vendor, If I want 100 Raw Beast hides (vendor sells 5 at a time), I have to click on the item 20 times plus click on the confirm 20 times.

I know I can buy more than 5 at a time because I got Skillet's shopping list to do so, but the process is complicated (the toon with the excess garrison resources is not the toon that needs the raw beast hides).

Is there an existing addon that can do just this simple task?

I haven't tested it with Garrison Resource vendors, but my BulkBuy AddOn can bulk buy items that cost other non-gold currencies.

There's no shift-click option on the vendor's items, so BulkBuy doesn't work.

Try out GnomishVendorShrinker
it works fine for me. The max amount you can buy at this vendor is however 200.
Just klick the button to open the menu and put in the number 200 and you'll buy 200..

http://www.wowinterface.com/download...rShrinker.html

To answer my own question, BuyEmAll works as well.

Yes, this is what I've used for years, and would recommend.

On a side note, according to the patch notes, 6.1 should fix that vendor.