Hi @SamCav ,
Welcome to our community. In Adobe Express, the best way to achieve this is to group the elements first. Select all the elements, tap Group, then go to Animation and choose a slide animation (like Slide In). Grouping makes them behave as one object, so they move together in one steady stream without overlapping.
If you want them to remain separate, you can still apply the same animation and adjust the timing/order so each element enters slightly after the other for a smooth sequence.
I hope this helps.
Regards,
Mahmoud