as happens for formats, it would be nice have the option to quickly set more objects with same size (height and width).
A basic solution could be have the option "Copy size" and "Paste size" , that works like copy/paste format, in the same drop down menu
A more advanced solution is that when i select more objects I can open a panel where i choose the reference one, and decide which Size parameters i would to apply for all object selected (e.g. only width, only height, both)