Simple question really but it annoys me every time. Sometimes I buy 250 of the same bags, for example 'Heavy Moldy Bag' from the TP. When I have them all in my inventory I end up clicking 500 times on the icon to open all 250. Surely there must be a better way to do this?
At the time of writing there is no way known to me that let's you open a stack of those bags in one go.
The only way to automate this would be scripts or keyboard macros (if your keyboard supports those), but they are not allowed as per EULA.
It's not just loot bags mind you, but also using salvage kits and consuming Essences of Luck :)
A simple Autohotkey script can save a lot of doubleclicking. For example, the following sends a double click when typing alt-d:
While it's true that the use of scripts is not officially sanctioned, it's very unlikely a player will be banned for using a script that essentially redirects or remaps some input; not to mention that it would be very hard for the game to detect such scripts and prove a script was indeed used when you also have many keyboards and mouses with custom software that does essentially the same.
There is a popular script for example, called Immersive Combat Mode which many players use for Guild Wars 2. The version 1.0 of this mod summarizes the situation as: