I am new with portals, I created a website last week for a client and its live now. They now require further page updates and content updates, in order to do this I need a testing environment (since I cant risk breaking the live site). So I need to pretty much make an exact replica of the live site which is in a production environment. I found this https://docs.microsoft.com/en-us/powerapps/maker/portals/admin/migrate-portal-configuration and had thought this was the solution, I followed the steps and the result was the starter basic portal that is created from a blank portal with the 3 tabs from my original portal that do nothing.
I placed a ticket with Microsoft support about this and the service personnel I got said that the migration does not seem to be the solution for what I am trying to achieve (creating the exact replica of the portal).
From everything I have seen here it seems that they are incorrect. I did further research and I found that XrmToolBox can achieve what I am trying to get done...which is an exact copy of my live portal website for testing purposes.
My question is:
1) Is the Microsoft personnel I got incorrect about this?
2) If he is incorrect, which will be easier for a noob like me to use, XrmToolBox or Configuration Migration tool?