Gallery addon needs more pagination options and shortcode changes

the pagination feature is too limited and we need to have page numbers with control over how many images per page. we also need options to show pag number top and bottom of grid or have a load more button at the bottom.

regarding short codes, if I add a gallery to a page and then change the theme for that gallery or any other settings regarding display I need to update the shortcode on every page it is located on many pages of the site which is too limiting. we need to add a gallery to a page and if the gallery display settings are changed it will auto change where the shortcode is embedded or just pickup the settings feom the gallery and not make them variables ion the shortcode. this feature exists on other gallery plugins that we use.