Click Modify
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.