Prefix Suffix Options
Click the Prefix/Suffix button on the Dimension window for these options:
Prefix: Adds a notation before the dimension measurement. You can keep a list of up to five custom notations that are available for dimensioning.
Suffix: Adds a notation after the dimension measurement. You can keep a list of up to five custom notations that are available for dimensioning.
Same As (hand icon): Click to copy the properties of an existing dimension.