Hi Igor!
Under "tools/settings" > "SSL certs" I added a new SSL Cert (GeoTrust). Cols "R" "K" "C" "A" looks OK. Now, I have 3 Certs. First "Plesk", second "my 1" and third "my 2". Cert "my 1" shows "used" = 3.
My domain is running with cert "my 1" since 1 year. But, in "Hosting Settings" for...