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I would very much like to add a column to my BOM then make the lines invisible. I want to have one or more parameters attached to the BOM but off the page of the drawing because no ones going to like having a bunch of lines on the page to the right of the BOM like a column didn't get printed.
You should be able to blank all of those lines in 8.0 and later.
Allow to blank the exterior border lines of table - PTC Community