A leader object typically consists of an arrowhead, an optional horizontal landing, a leader line or curve, and either a multiline text object or block.
You can create a leader line from any point or feature in a drawing and control its appearance as you draw. Leaders can be straight line segments or smooth spline curves.
A multileader object, or MLEADER, can be created arrowhead first, tail first, or content first. If a multileader style has been used, then the multileader can be created from that style.
Multileader objects can contain multiple leader lines so that one note can point to multiple objects in your drawing. Using the MLEADEREDIT command, you can add leaders to, or remove leaders from, an established multileader object.
Annotative multileaders containing multiple leader segments can have different head points in each scale representation. Horizontal landings and arrowheads can have different sizes, and landing gaps can have different distances, depending on the scale representation. The appearance of the horizontal landing within a multileader, as well as the type of leader line (straight or spline) and number of leader segments will remain the same in all scale representations. For more information, see
You can use grips to modify the look of a multileader. Using grips, you can lengthen or shorten a landing or leader line, or move the entire leader object.
Multileaders can be arranged to add order and consistency to your drawing.
Multileader objects with blocks as content can be collected and attached to one landing line. Using the MLEADERCOLLECT command, multileaders can be collected horizontally, vertically, or within a specified area depending on your drawing needs.
Multileader objects can be sorted evenly along a specified line. Using the MLEADERALIGN command, selected multileaders can be aligned and evenly spaced as specified.
When associative dimensioning is turned on (), the leader arrowhead can be associated with a location on an object using an object snap. If the object is relocated, the arrowhead remains attached to the object and the leader line stretches, but the multiline text remains in place.