Another benefit of using CAD tools to produce P&IDs
is the ability to automate much of the drafting functional-
ity. Such functionality includes the ability to automatically:
break process lines when they cross; remove a section of a
process line when a valve is inserted, or close a line when a
valve is removed; check that a valve is the same size as the
line into which it is being inserted; make global changes,
such as changing the size of a line (with a prompt asking if
those changes should be applied to all inline components);
and change line types without redrawing.