All leaders in the selection set will be detached from their annotation objects. The only visual feedback will be the loss of a hook line.

Command: QLDETACHSET
Select objects: Select leader line

Usage Example:
Select a leader line to detach from an mtext object.

Select objects: Select leader line
Number of Leaders = 1
Number with annotation detached = 1

Leader with mtext object attached:

Leader detached from the mtext object, which can then be moved: