Gradient from 2 swatches?

I often need to make a gradient from two colours in my drawing or from my swatches.

I know how to do it from the gradient panel, but I think it is a lot of "clickwork", if you do it as often as I do.

I would like to be able to select colour from two different objects and then with at click make a gradient from these two to drop onto a third object. (Sounds simple :·)

I came across an old script, that should do something like this, but it was not up to date. (https://github.com/mhulse/illy-grad)

Does anyone know of such a script?

Thank you for your time

++michael