XS_DIMENSION_EXTENSION_LINE_TOWARD_FACTOR
Category in Advanced options dialog: Dimensioning - general
Use this
advanced option to adjust the length of the dimension extension lines that are
facing towards the dimension points. Define the length as a factor for the dimension
text size. The default is 1.5 (text height * 1.5).
This advanced option is applied only when the option Short extension line is set to Yes or On grid lines only in the dimension properties.
This advanced option is model specific and the setting is saved in the options database.