Edit Bar controls: Dimension value.
Infer Dimension allows the operator to temporarily change a single dimension to a different size even if it has a variable that is used in other dimensions.
Use of this tool is only valid when you have a fully dimensioned model.
To use simply activate the tool and click on the dimensions you wish to change. Enter the new value for each identified dimension in the field marked Dimension value located on the Edit Bar. Selecting Update Model will apply all of the new values.