Hi Jane, eStore doesn’t have any option for setting the page style on PayPal as the default/primary one gets displayed automatically.
You only need this option when you have multiple style pages and not many people use multiple style pages. Anyway, this sounds like a good idea so I will definitely add this option in eStore so you can specify the page style.
It is just a matter of adding the following field to your payment submit form if you wanted to do it manually:
<input type=”hidden” name=”page_style” value=”page_style_name”>
The following URL explains how to create Page Styles in PayPal (just mentioning it here if someone is curious to learn about it):