Selection Filter

Hello, I am a newbie to rhino grasshopper! I have a query regarding the selection of the circle! Is there a way so that I can only select the circle in the red marked line and the rest are omitted! Also, it should be able to control with slider number! Like if the slider number is at 1 it selects the first circle and if the slider number is at 15 it selects circle 1 to 15. Thanks in advance! (6.4 KB)

Benav (13.2 KB)

Found a more easy and convenient way! By the way, thank you so much for replying! Thanks for teaching a way around too! (10.3 KB)