Hey guys and girls...

I have a big problem right now and hope I will get some help from experts!

I have to do a list with a hyperlink and I have no clue how to do it!

So here is the task!

A1 and B1 include the first and the last name. C1 includes a hyperlink of a manual you have to read! every cell is colored red but when you click on the hyperlink in cell C1 (no matter if you red it or not) all the rest of the cells included A1 and B1 turn green!
I have no idea how to program that! Please... I am desperate right now! How can I fix that??

Thanks for every help I can get