Vertical Dimensions
To chain dimensions in the vertical plane:
1. Press DIMENSION 1.
2. Pick CHAIN and Vertical.
3. Select MANUAL or AUTO placement.
4. Select the dimension points or elements to be dimensioned. If your selection contains multiple drawing elements, they become the first members in the chain.
5. If MANUAL placement was selected, indicate the desired location for the dimension text(s), using the dimension trace for guidance.
6. To continue the chain, select additional linear elements.