Keyboard shortcuts are an absolute life (and time) saver when you’re designing!
For Mac:
T → Add a text box
C → Add a circle
R → Add a rectangle
L → Add a line
⌘ + A → Select all elements
⌘ + D → Duplicate selected element(s)
⌘ + G → Group selected elements
Hold Shift + Click → Select multiple objects
⌥ + ⇧ + T → Tidy up selected elements
⌘ + ] → Bring element forward one layer
⌘ + [ → Send element backward one layer
And here’s the same ones for Windows:
T → Add a text box
C → Add a circle
R → Add a rectangle
L → Add a line
Ctrl + A → Select all elements
Ctrl + D → Duplicate selected element(s)
Ctrl + G → Group selected elements
Hold Shift + Click → Select multiple objects
Alt + Shift + T → Tidy up selected elements
Ctrl + ] → Bring element forward one layer
Ctrl + [ → Send element backward one layer