Food delivery site minor changes and adds

Hi, we have an active online food delivery site with homedelivery and takeaway options. we need some minor changes/addings on the site and in admin panel. such as hide/show extra toppings, hide/show categories (even it's full), make categories live according to days and times, make all food items on the menu hide/show, add note not available, hide/show according to days and times, implement e-mail activation feature for newly joined users, adding small thumbnail photos of dishes on the menus.