Using DimXpert to Apply a Geometric Tolerance To use DimXpert to apply a geometric tolerance: Click Geometric Tolerance (MBD Dimension toolbar) or Tools > MBD Dimension > Geometric Tolerance. Select the geometric characteristic. Apply the tolerance information and datums as required. Select a feature and place the annotation. You can also preselect a feature. Click OK. You can also set geometric tolerance attachment options. Parent topicDimXpert Geometric Tolerance Tolerance Dialog Box