How Can I Rotate Gradient Without Using The Handles?

I understand that when I apply a linear gradient, there is this handle with which I can change the rotation. But I can’t see where I can enter those values by exact numbers, e.g. an angle of 30 deg. Even rotating the gradient by 90 degs and let it run exactly from start to end is difficult, as I have to adjust the handles by hand.

I can code this in a few lines of SVG code, why is it so hard to access this information in Figma?

I don’t think it’s possible! It should be, though!