Saveble

Saveble drawing-customization as standard or selectable.

Such as: 
I am drawign a trend line and select the line color as red and pick select the dashed line option. 
Then on a drop-down list there are a save button, to save the customization on a unique name ("Red dashed line").
After drawing a trend line we can choose this customization from that drop-down list.

This option would be good in all of drawings on all of options, like on fibonacci level linestyles etc.