Edits a block or an xref directly within the current drawing.
The objects that you select from the selected xref or block are temporarily extracted and made available for editing in the current drawing. The set of extracted objects is called the working set, which can be modified and then saved back to update the xref or block definition.
Select reference: Select an xref or a block in the current drawing
If you edit an xref when the ribbon is active, the displays.
If you enter -refedit at the Command prompt, .