I have multiple php version on Plesk! Unfortunately only 5.4.16 by OS Vendor is with Apache Module.
Is there any way to update this in order to get 5.6.24 with Apache Module?
you have to upgrade your basic PHP version on your server on your own. I can recommend for example packages from "https://launchpad.net/~ondrej", if you use Debian/Ubuntu on your server. You will find dozens of tutorials when you search for