1.) To add a content block to any page, drag it from the customize drawer and drop it onto your page.

2.) Photo, Navigation, Video, Design, Text, Social, Discovery, HTML & CSS.

3.) Single Photo: Add a block that contains a single image to any page, gallery, or folder.
Multiple Photos: Add a block that contains more than one image to any page, gallery, or folder
Slideshow: Add a slideshow to any page, gallery, or folder.
Carousel: Add a photo carousel to any page, gallery, or folder

4.) Menu: Build a navigation bar with links to other pages on your site, as well as to any external sites you'd like your viewers to visit (e.g., a blog).
Galleries: Display certain galleries.
Folders: Display particular folders.
Pages: Display certain pages.
Folders, Galleries, and Pages: Display all types of content levels together.​
Breadcrumb: Add a breadcrumb to reveal the links between your homepage and the page being viewed.
Featured Events (Pro): Feature an event on any page you create.

5.) Logos and Separators 

6.) sRGB

7.) You shouldn't crop your photos before uploading to SmugMug because you should Let the customers choose the crop in the cart,  if they get it wrong  you can set your galleries for proof delay, which allows you to see and adjust the crops as needed.

8.) 750x935