For an AEC dimension to be reversible, these conditions must be met:
- The dimensioned wall has either two interior or two exterior sides. Tip: If you want to reverse the dimensioned points on a wall with an interior and exterior side, you need to reverse the wall direction.
- Wall components must be dimensioned on only one side, either on the positive or the negative side.
For example, if you dimension one side of a wall component of a wall that has two interior or two exterior sides, reversing the dimension direction will dimension the opposite side of the component.
- Select the dimension for which you want to reverse the direction, and click
, or click
. 
