I was just experimenting with creating a sketch similar to the one in the link below using polyline.

https://image.slidesharecdn.com/20-days-of-2d-cad-exercises-part-i-211217171509/75/20-days-of-2d-cad-exercises-part-i-4-2048.jpg

However, I ran into some difficulty at the non-perpendicular angles (0,90,180,270). When I enter the angle in the angle tab at the lower-left (next to the distance), the angle is always measured from the positive X-axis as the starting point. I think it would be really helpful if there was an option to have the angle we input be based on the last line of the polyline as the starting point instead.

Is this something that could be added in a future update? (Consider this a feature request). Thanks a lot!