Detailed Drawings > Annotating the Drawing > Cleaning Up Dimension and Detail Display > Managing Details with Snap Lines > To Create a Snap Line
  
To Create a Snap Line
Snap lines enable you to locate dimensions and detailing items in your drawings. After you place an item on a snap line, the item moves with the line.
1. On the Annotate tab, in the Edit group, click Create Snap Line. The CR SN LINE menu appears on the Menu Manager.
2. Define how you want to offset the snap line; from an object or view:
Offset View—Offset snap lines from a drawing view borders.
Offset Object—Offset snap lines from a drawing object, including geometry, datum plane, and other snap lines.
3. Depending on how you defined the snap line offset, select the appropriate view borders or drawing objects to offset the snap line from. If you select a non-straight drawing object, keep in mind that a straight snap line will be created tangent to the point you select. The selected items are highlighted.
4. Middle-click to confirm your selection. You are prompted for an offset distance. If you are offsetting the snap line from a drawing object, a direction arrow appears, indicating where the snap line will be created.
5. Type the offset distance for the first snap line. A negative value positions the snap line in the opposite direction of the direction arrow. Middle-click to confirm the distance.
If you are creating multiple snap lines from the same reference, type the number of snap lines to create and then specify the space between the lines.
6. Middle-click to confirm the snap line creation. The snap line is attached to the specified view borders or drawing objects. To leave the snap line creation process, Middle-click or click Done/Return.
 
You can change the snap line offset distances by double-clicking the snap line. You are prompted to type the new offset value.
You can delete a snap line by right-clicking it and selecting Delete on the shortcut menu. You could also select the snap line and press DEL or click Annotate > Delete > Delete.
You cannot create snap lines off draft entities that are part of cross-hatching.
Snap lines are not automatically created for draft entities when using Clean Dimensions. You must manually create and attach items to snap lines offset from draft entities.