You can use grips on certain duct objects in a drawing to quickly modify the duct system, as described in the following table:
| Grip | Description | Available on |
|---|---|---|
| Location | move a part | ducts, fitting, and MvParts |
| Elevation | change the elevation for a part | ducts, fittings, and MvParts |
| Rotate | rotate a part around a duct centerline; flip parts in place, usually to orient a part for flow direction | in-line or anchored MvParts, fittings, and takeoffs |
| Lengthen | change the length of a duct | duct |