With 5.0 came filter options for the vendor windows. Now, for a while on beta, the default filter was for your class and not "All". This meant that whenever you opened the window, you needed to click once to open the menu, move your mouse cursor to your preferred filter, then click again to select it. Needless to say, this was annoying. If you went through this on the beta, or if you just use the filters often, then chances are you would love for there to be an easier, faster way. With MerchantFilterButtons, there is. Instead of a dropdown menu, you get a row of buttons, one for each filter option.
Get rid of the dropdown and download the addon here.
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"You'd be surprised how many people violate this simple principle every day of their lives and try to fit square pegs into round holes, ignoring the clear reality that Things Are As They Are." -Benjamin Hoff, The Tao of Pooh