Why "Double-line Auto-border" can't customize the width?

I want to design the Double-line border as the picture below, but in solidworks auto-border function, it can't customize the width of the border.

It only provide one width, but i want to choose the witdth by myself.

I can modify the left border by hand, but it is not the auto border  :!

SolidworksDrawings And Detailing