Hi OSTexo, in the future I could see tweaking the arc continue tool to allow for building this - that's the one that tries to make it easy to make an arc tangent to just one curve.

But it more oriented towards letting you pick the end point of the arc and automatically figuring out the radius based on that end point instead of letting you constrain the radius.

But for now using arc from center point and placing the center point perpendicular to the tangent edge should construct what you need.

- Michael