Just as an FYI, the macro is used with a utility called AC Tool, it will perform mouse movements and clicks for you in a loop. (AC actually stands for Asheron’s Call, an old-school MMO, I played it back in the day, and used this tool too!)
But this utility will only work if you’re playing GoW on a PC. If you’re IOS or Android, you’re out of luck.
In any case, I’d still love to see some alternate functionality to open hundreds of keys without going through them manually one by one.
As an idea, could it be possible to submit a ticket to support and then they could perform some behind the scenes magic to open all those keys for us? @CrowdedWorlds, huh? If you don’t want to be flooded with requests, maybe put some limits like 500+ keys, and only once per month, etc…