[solved] Most efficient way to get sum of all light states?

[buuuudzik]

@buuuudzik
did you mean me with your answer? If yes, you missunderstood me. I use multiple resident scripts to count for different groups. I agree with you, taht event based scripts for an global stat is not a good idea. That was the reason for this thread.

Thank you very much :-)

This was only an exchange of some experience with this complex subject that everybody should have whole background of this subject(Preparing the elegant solution for calculating central statuses).

But for this script recommended is to using only 1 with whole groups(Kitchen, Livingroom, 1Floor etc.).  I updated this script a few minute ago because I saw that there was no sum function   Now there is. Please check.