Well, while I had nothing to do in my work yesterday, so I just openned Notepad and came up with an idea: a triggerable corona. 

What it does? You can trigger it to turn it on/off, with 3 types of triggering (trigger control, pound and toggle, for now). It has a 4th option to loop an effect, like blinking, and the turn on/off trasition can be done by an instant way, or a timed smooth way. 

However, this isn't a dynamic corona, this is just a normal corona for mapping only that can be triggered or looping some effects. 

In this package are the TrigCorona.u (the corona itself) and a test map to see for yourself how it works and what you can do with it. The triggered corona is in: Light > TrigCorona. 