WISH LIST app - override positioning html

Hope this makes sense!!

Im using a Wish List app. It is automatically positioned under the ATC button. I would like to move it so there’s an open spot to add my custom-coded delivery date code under the ATC. so it’ll look like this…

1 - ATC Button

2 - Delivery date

3 - Wish list

Wouldnt I use {%- render XXX %} ?