In DWG workmode:

• Dimension style compatibility is checked whenever a dimension style is used. If any incompatible settings are found in the dimension style, an information box opens identifying the first incompatible setting. The style may be in the open file or in a DGN library.
• The recommended type of terminator is a shared cell. You can set the terminator type on the Geometry tab of the Dimension Styles dialog.
• To define text width, use a text style.