How to redraw drawn lines?

[genceraltan]

hello, when I open the program again, I want the horizontal lines that I drew on the btcusdt symbol to be redrawn.
Where are the lines kept and how can I reach them?

[highfestiva]

The lines are kept in a list, ax.vb.rois. RoI = Region of Interest. Note that the list can be comprised of FinPolyLine, FinEllipse or FinRect. GL!