Interactive CMS map

Hello, guys! Can you please help me? On the image below i have an interactive map. It should work like that: When i click on one of the regions in the list, it should higlight the same region on the map.

I was thinking about how to make it work a lot, and come up with only one idea: manually stick together all of the pieces and on top of each piece place the same, but colored in red. Hide it by default, and show when i click an eponymous item in the list. But i can’t even imagine how long it will take.

Maybe you’ve had the similar experience before and can suggest more effective ideas how to make it work? Will be very greatfull! Thank you!

Here is my public share link: LINK
(how to access public share link)