Deleting - Delete 

Copy - ⌘ + C or CTRL + C

Paste - ⌘ + V or CTRL + V

Undo - ⌘ + Z or CTRL + Z

Save - ⌘ + S or CTRL + S

Multiple selection - Shift + Select

Zoom in/out - Trackpad Pinch or CTRL + scroll

Moving canvas - Arrow Keys

Grouping elements in new container box - ⌘ + G or CTRL + G

Auto size - Double click on element border

Selecting next element within the same parent box (skips children) - Tab 

Selecting parent element of the element currently being selected - Esc

Selecting Child of element currently being selected - Return or Enter

Placing canvas in the center of the editor and 100% zoom - Double clicking outside of the canvas

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