Is there any possibility that final version 5 allows the option to use relative angles instead of just absolute angles?

For example, it would be useful having the option to make one segment of a vertical polyline and then making the next segment take an inclination of just 6 degrees in relation to the previous, without needing to add or substract 6 degrees to 90 or 270 degrees, which become much more cumbersome in the case where all segments have an inclination which don't align to any plane.

I know you can type the angle directly but the tool isn't actually constrained to it, it rather seems to takes it as some kind of step, so it's easier to make mistakes when working with small angles like 0.5 degrees.