How do I change the icon style of multiple locations at once instead of changing them one by one?

[winXD]

hi all,
I want to create a function which allow user to select "display placemarker label "  or "hide placemarker label",
For now,I use a loop to change icon style one by one,it can work,but I don't think this is a good solution,
Is there a way of changing icon style at once?

[Josh L]

Hi there,

Assuming the placemarks all use the same Style, you can just change
the LabelStyle so the label is transparent and all the placemarks that
inherit from that Style will be affected.

Cheers,

-Josh