Explode All Groups
You can explode all groups in the drawing. Elements belonging to the groups are kept. After explode, the groups do not longer exist, but the elements that belonged to group can be edited.
- On the
tab, in the 
Group group, select 
Explode all groups. - Confirm deleting groups by selecting Yes.
Note:
- A drawing sheet is also a group. If you explode all groups in a drawing, the group data of the drawing sheet is also deleted.