How to setup dynamic slideshow

Hello,

I’ve read other posts on this community but I still don’t find the solutions.

I would like to populate image files from this repeat1 in the slideshow.

I set like below, and it didn’t work.

スクリーンショット 2020-07-30 21.07.16835×661 95.1 KB

Please anyone let me know how to solve this.

Thanks,