One can also create a reverse repetitive group by defining a CSS property on the first div element of your repeating group.
Step 1: Create a repeting group, and enter the ID. How to define Id attribute
Step 2: Reverse the data source in descending order.
Step 3: Create an HTML component and save
<style>
#<repeting-group-id> > div:first-of-type {
display: flex;
flex-direction: column-reverse;
}
</style>
where is the id-attribute of repeting group.