Hi Bubblers!
I made a new plugin for paginating your Repeating Group pages, it’s very easy to set-up - I included a instruction page to help you out (only 5 little steps to get it up and running).
You can customize it almost as you want, you can choose your border & background colors, your buttons size, the direction of the pagination (horizontal/vertical), etc…
Here is the plugin page: CustomPaginator Plugin | Bubble
Please let me know what you think of it and whether or not something should be improved 
I would be happy to hear your feedback! 