@mbabug Q2A is exactly the same as Wordpress in that regard. If you want to do something custom in Wordpress you need to know PHP - it just happens that there are thousands of plugins and themes already made for Wordpress, given that it has 6 years development over Q2A, from many people.
Having said all that, it's good that you're coming up with new ideas for Q2A. Hopefully one day we'll have a solid community of plugins and themes to rival Wordpress!!