Running LiteSpeed on CentOS 7 how do I install memcached? Through EA4?

I've just moved over to Litespeed within WHM as I primarily run Wordpress websites, I want to install memcached or redis, but I'm unsure how. Do I do this through EA4 or do I have to run this through yum etc. ? If so, how do I access this from WHM after installation, or do I not?