uhh what do you mean

oh i get it yeah

if you put two lines of color next to each other on the old editor, put them overlapping each other. Then download it (the little red down arrow save button in the cog thingie) and then go onto the new editor. Next, (MAKE SURE YOU DONT HAVE ANY DRAWINGS ON NEW EDITOR, BECAUSE UPLOADING A PICTURE WILL CLEAR IT) go to the little cog thingie, and click the green upload arrow thingie. Then zoom in reeeeeally far onto the part where the two lines overlap and move the blended part to the desired section of the drawing area.