Revamply

You absolutely can. 

Simply add any Wordpress page on Revamply and edit it. Once done, hit publish and copy the embed code and paste it in your page's Wordpress editor like here:

Step 1> Grab the Embed Code

Step 2> Paste the Code in Wordpress Editor Like Shown Below

Once done, hit publish and then get back to Revamply and click on, Yes, I added the code. And now your changes will go live on this wordpress page. 

Note: Make sure that you add embed code on the page you edited with Revamply. You get new emebed code for each page. 

Revamply Pro allows you add WP pages with one click without having to enter embed code manually.

Hope that helps!