Dimension attributes can be set:
|Style||Displays the active dimension style, which is set on the Dimension Styles dialog. The option menu lets you select other available dimension styles.|
|Dimension Styles icon||Opens the Dimension Styles dialog, which lets you create and define dimension styles.|
|Annotation Scale lock icon|| Sets the Annotation Scale
Lock. When this lock is on, the annotation scale is applied to the selected dimension.
By default, the annotation scale is taken from the model's Annotation Scale setting. You can change it only in the model's properties in the Properties dialog. The exception is when the model's Propagate Annotation Scale property is off. In that case, the annotation scale can be controlled independently for each element via its properties.