ClickModify
menu ObjectMultiline.At the Command prompt, enter
mledit.
In the Multiline Edit Tools dialog box, select Closed
Cross.
Select the multiline for the foreground.
Select the multiline for the background.
The
intersection is modified. You can continue selecting intersecting
multilines to modify, or press ENTER to end the command. Press
ENTER again to redisplay the Multiline Edit Tools dialog
box.