To convert grouped objects into individual objects or a rectangle or ellipse into a freeform path.

To reset a collection of objects so that each object can be worked with separately.

To separate a grouped object back into its component objects so you can work with them individually. NOTE: in 1.x this term was called Defuse.

the replacement of a selected block by its child blocks.

(sheets) To separate grouped sheets. Click on a sheet that is not in the group, or right click on the group and select Ungroup from the popup menu