Adobe InDesign Key Commands “Cheat Sheet”
A time line of new Adobe CC features
The following links will take you to web pages detailing the major new features introduced in the most recent versions of these key products form Adobe.
To draw any shape from the centre rather than the opposing corner, hold down the opt(alt) key while you are drawing the shape. Of course you can also add the shift key to constrain ellipses to circles and rectangles to squares.