Click the origin indicator and drag it to the desired location.
To precisely move the origin to a new location, right-click the origin indicator and choose Edit, or double-click the indicator. In the Origin Indicator dialog box, enter Relative X and Y offset values. The origin moves to the specified location and individual ordinate dimensions update to reflect the new origin position.
Right-click the origin indicator or the dimension and select Hide Origin Indicator.
Double-click the grip point next to the origin indicator to change the origin indicator.