Tooltip: AO4SupportOpening
Creates an opening with four supports. The opening is centered between the supports.
Select the supports in order of opposing sets.
You can select the opening shape (circle, oval, or rounded rectangle), and then define the parameters for that shape.
If opposing supports 1 and 2, or 3 and 4, are not parallel, then the opening is centered between the midpoint of each support.
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