Team members

Hello,

For team section go to “Appearance > Customize > Custom Css” and put this code.

#section4 .col-sm-4:nth-child(2), #section4 .col-sm-4:nth-child(3){
display:none;
}
#section4 .col-sm-4:nth-child(1){
width:100%;
text-align:center;
}

You can upload square image for team member (Like : 270 x 270)px.
More then two slide option is only available with the pro version of theme.
Fro details about theme please follow this link
https://www.themehunk.com/product/novellite-one-page-wordpress-theme/
And for theme documentation visit link below.
https://www.themehunk.com/novellite-theme-documentation/

This will help you.

Regards
ThemeHunk