If you have more then 1 time-line in a drawing have an option to automatically align the time line i.e. if 1jan2020 is in one time line and as well in the other those dates align Horizontally (or ask via pop up at what date they should align). That brings me to my second point scaling, if you have more than 1 time line where size it that a year is (e.g.) 1inch long, there should be apply to other time line option so that the other selected time-line years are also 1 inch long