I would like to know how to draw Gann fan properly on Trading Station?

Second is there a way to set scale of the chart to be 1:1? so that I can draw 45 degree line properly
I had tried with "Add trend by Angle" but it cant be used as reference for drawing Gann fan.

Third, What is the best way to draw Gann fan, draw 1:1 at 45 degree angle or place two points @ the starting bottom and the new bottom for uptrend?

Thank you for your help.