From an old project
I’m working on this too! I will upload my blocks when I have completed it.
My scenario is: I have 10 markers in 4 different groupings. I am giving the user the option to turn off (or on) the markers for each specific group.
My problem Is Solve,
now i am add multiple Marker
Maybe show your solution. That is the point of a forum. To learn yourself and to teach others.
Result ? How did you do? Can you show with us?