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Users questions:To give a simple example. I will first use the rectangle command AUTOCAD drew a flat rectangle, the shape is probably a level of release of the "day." Then I use that stretch up the command will be stretched into a cuboid. But when I want to delete the middle of the upper surface of the cuboid that a straight line ( "Day" middle "one") Or on a surface or a side of a ridge when will this wire around the line are also deleted. This is how it? Is it because I used when painting the underside is a whole command, the system as a whole entity as a whole. There any way to remedy?
Experts answer: Selected Map with the command of the overall bomb exploded inOpen, then you can delete a segment you want to delete the.