Used to view reality mesh attachments.

Setting	Description
Show Hierarchy	When on, displays a tree that shows the active file and references that are directly attached to it. When the tree is turned off, you can use the arrow button next to the Show Hierarchy icon to list the active file and any references that are directly attached to it.
Hilite Mode	Controls whether the selected references are highlighted and surrounded by a border. None - Selected references are not highlighted in any way. Boundaries - Places a dashed border around selected references.
Reality Mesh Attachment upper list box	Lists the reality mesh attachments for the current model.
Select Reality Mesh Classifier	Allows selection of the classification boundaries by picking the reality mesh directly. As the cursor is moved over the reality mesh, the reality mesh volumes are flashed to indicate the current classification contents. Entering a data point selects the indicated classification boundary element. Entering reset removes the last selection and a data point with the <Ctrl> key adds a classification boundary to the existing selection. MRMESH CLASSIFIER SELECT
Reality Mesh lower list box	Lists the classifiers for the selected reality mesh.
Tools > Select Classifier	Allows selection of the classification boundaries by picking the reality mesh directly. As the cursor is moved over the reality mesh, the reality mesh volumes are flashed to indicate the current classification contents. Entering a data point selects the indicated classification boundary element. Entering reset removes the last selection and a data point with the <Ctrl> key adds a classification boundary to the existing selection.