The dimension palette appears when you insert or select a dimension so you can easily change the dimension's properties and formatting.
You can change the tolerance, precision, style, text, and other formatting options in the palette without going to the PropertyManager.
In the Style portion of the palette, you can select any of the formatting settings that you applied to other dimensions in the drawing, which saves you time when formatting dimensions.
If you select more than one dimension, the properties and formatting that you set in the palette apply to all of the dimensions.