Editing header and content in slides

Hi, I could add a page to slider. I could edit the button text. But, I could not edit the header and caption on slides. It sets the page name as header and no text.

What I see on slides of demo page(https://promenadethemes.com/demo/medical-way) are:
SLIDE-1:
“Lorem ipsum dolor sit amet”
“Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque id mauris magna.”
SLIDE-2:
“Mauris sagittis mauris”
“Mauris sagittis mauris sed mauris egestas semper. Quisque convallis id ligula ac faucibus.”

What I have is:
SLIDE-1:
“Home”
“”

I’ll be happy if you could help me with editing those fields.

Regards,