"Apply variable" for all properties in the Design Panel

Variables are great, but it would be handy to be able to apply variables to every property in the design panel.

At the moment the options are limited. For example, I can’t use a variable to determine the sweep of an arc.

In this case, I have a component, “Progress Circle”

It has a property of “Percentage” which is applied to the text. I want to be able to apply a property to the sweep value of the purple arc and use the same variable for the two properties, keeping them in sync.