Dialog Component A11Y and Prop Usage

[VenkateshChunchu]

Hi, I'm using Dialog component in my project where in, I must navigate into different steps within the Dialog component.
like Dialog having Next and Back buttons to switch between the steps.

1. I wanted to show no of steps left on top right hand side of dialog header.
   something like Step 2/3. Please can any one point me which property to look for?
   I see this is supported from documentation:
   
2. On Navigating between the steps the focus is setting back to the parent window.
   Expectation: should read Next step page content.
   Actual: it is losing the focus on Dialog

I have tried FocusTrapZone for all the content inside the dialog and to overall Dialog as well. nothing seems to be helping.

I really appreciate your response on this.

My Dialog looks like:

[VenkateshChunchu]

FYI: I'm looking something like this: I really Appreciate your help