Ellipse Tool, if make an ellipse then you have a little squire pointing to make ellipse’s End Angle and Pie Angle, but you do not have these feature available in its properties/Dialogue/Menu when you just select Ellipse Tool and you clip on the canvas or on Art Board you have no control features for that and you also do have the same features in Control Bar and Useless Properties Panel. I hope in the future version there must be added a dialogue for proper setting and measurements like retangle tool.