It will not be perfect. I.e somethings you may need to set individually like font size.
But you can select a group of elements and while holding down the alt button drag resize every thing selected. This will resize from centre outward, and keep the selected elements in scale with each other.
It is not a do all as you may have to still tweak some elements and remember that layers of elements below the selection may not be selected. So you can hide any top layer elements that are covering lower elements so you can select lower elements resize.
Any elements that share the same font you can select them all and change the font of them all in one go.
You can even select any elements that need to be the same width and hight and use the inspector to be precise.