Yes – choose Play slideshow (In order) in your Personal settings (random is the starting choice). It loops round at the end, just like random does.
Where to find it
Press your name in "Signed in as" (top row) → your card opens → Personal settings on the card's button row → Gallery / Slideshow → the slideshow choices
On a phone: if the card's buttons are tucked away, press ☰ Menu first.
Still stuck? Talk to a real person: send us a message, or email support@mywholefamilytree.com