We would find it very helpful to implement function "Flash LED" on E series access points in cnMaestro.
In scenarios that where we have multiple accesspoints and no remote direct connection to local area would be helpful to use this function via cnMaestro, so the troubleshooting is faster and easier.
I have raised a feature request for the same and will post the update once the engineering team comments on whether we can implement it or not. In the meanwhile you can post this in the ideas section also for tracking purpose