[SOLVED]: "Reset" button in the Margin and Padding options

It could be useful adding a button, next to “Linked/Unlinked button”, that let us to quick reset the values inside the Layout/Margin and Padding options of elements.
Thanks

Just hover over the dot to the left of “Margin” or “Padding” and it turns to an X … click it to reset.

Thanks alanj. It is not more intuitive find the option but it works.