Thanks for your inquiry.
Thank you for your quick answer. We are considering to modify the template of your module additional pages to become mobile friendly.. we will probably need these modules: multiple seller, multiple shop, express paypal checkout, pay by check, pickup center, multiple shipping: how many pages we should convert/modify? Each module has a single template page or more than one?
for the payment modules, they only just hook the payment button or payment selection. there isn't real independent pages.
There are a few pages from multiple seller and multiple shop module. Yes all of the page has its own controller and theme file.
Most of the page, we inherits theme designed style, we do not define specific style for our page.
For multiple seller module - all new pages from the module are seller management panel pages. like product management page, order management, some of the, you may not need to convert.
hope this answer your questions.