How do you clear the LBML Map of old claims?

Hi,

I want to know how you clear all the old mining claims off the LBML map. I have days worht of drop circles flooding my map making it unusable and cant figure out how to reset it back to an empty map?

Any tips would be appreciated, thanks.

The button above the little running man icon, is a filter use that to set whether to show claims prior to a certain date, you can set to show claims or drop circles