Modal image popups for screenshots

Hello, I have a site under re-development that has a section for documentation that I plan to use EasyBlog for.

In the documentation, there are a number of screenshots that are wider than the screen area.

If you look at this page on the existing website, you will see what I'm talking about - clicking on image creates a modal pop-up with a larger screenshot:

http://variancereconciliation.com/vrs-documentation/variance-worksheet-overview

As a result, I had been using the JCE Editor - extended edition - to create the same functionality:

https://www.joomlacontenteditor.net/support/tutorials/jcemediabox/item/create-an-image-popup

I have a few questions:

1. Is there functionality using the built-in composer for EasyBlog to have similar functionality to the popups in the above link so that I'd be able to use Composer instead of JCE?

2. If the answer to the above question is yes, can you please point me to the documentation that illustrates how to do this?

Thanks!