Help with AlienFX SDK

I am working on integrating AlienFX with an app. The new version with per key rbg.
Based on the AlienFX SDK documentation, I was able to work my way around pretty well. But there is a limit to the number of commands that the queue can handle. So a lot of other commands are discarded.
Based on the information in the docs, I think we can use LFX_Light and use a "32 bit location mask" to light up a group of keys instead of doing it per key. Similar to how AlienFX 'FX' tab has options to target 'numbers', 'qwerty', 'wasd' etc. But I cant find details on how this can be done.
Are there any examples of using "location masks" anywhere? Maybe details on how AlienFX effects are done etc.
Any info on this is highly appreciated.

Note: I have an Alienware M15 R2.

Thanks