Minor improvements in 1C Bitrix

There is a site on 1C-Bitrix business edition
1) Is detailed and additional images we throw the pictures in the properties (Photo1 to Photo25) if I can get them out safely in the pages of the site, no pictures on the shopping cart in the pop-up bought this product. And when you give links in messenger no photo. Alternatively, you can make the automatic transfer of these properties in a highly detailed picture and additional pictures, if not then just code them to display on the shopping pages, and pop-up when PC with the links
2) to Slightly alter the smart filter, we now have a horizontal filter and need to make a dropdown list with multiple choices well, respectively, so that it is stored in the application or via ajax.