Command enter in properties panel does not work
In the Transform panel entering only a width or a height then pressing Command Enter (on a Macintosh) will enter the new value (either width or height) and scale the selection proportionally. For example, take an object that is 1 cm wide and 3 cm tall. Type 2 cm in the width field, press Command Enter, and you will find the object scaled to 2 cm wide and 6 cm tall.
Do this in the Properties panel and nothing happens. Command Enter is ignored and the new measurement is not applied (because you didn’t press Enter as far as the application is concerned).