Unfortunately like Paint.NET, it doesn't save its settings between uses (my only other peeve with Paint.NET) so is impractical since it's used multiple times each session. I didn't look to see if 2+ lines lines are possible due to that.
I dearly lament that PAINT.NET doesn't have this simple functionality. I've been putting up with it for years because I like the program but having to use the unfriendly Gimp just for drawing paths is too inconvenient, so the search continues.
Anyway, thank for your help.