A checkmark to select/unselect all variants when setting up States

Currently, when setting up states based on 'Selected Variant', all the variants of all the selected products are checked by default. Sometimes it's time-consuming to uncheck so many variants. Like in this example, you can see that it's 128 variants and if I only wanted a few, I'd have to manually uncheck all of them.
It would be helpful to have a 'Select All' checkmark to select or unselect all variants