| Step 1. | Click one of the following buttons: 
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| Step 2. | Click a dimension (A) in a dimension group. | 
| Step 3. | Click an element (B) you want to measure. | 
| Step 4. | Click where you want the dimension (C). This adds the dimension to the dimension group. 
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Tip:
If you delete a dimension from the middle of a chained dimension group, the group is split into two groups.