Deleting a lightweight body is deleting the parent solid body.
How can the lightweight body be deleted without deleting the parent solid body?
Solution
1. Make sure 'History Mode' is being used.
Select 'Insert-->Synchronous Modeling-->History Mode'.
2. Make sure 'Timestamp Order' is turned off.
In the Part Navigator, place the cursor over one of the column headers, 'MB3-->Timestamp Order'.
3. In the Part Navigator, the lightweight body will show up as a dependent
of the solid body and can be selected for deletion.
Notes and References
Hardware/Software Configuration
Platform: all
OS: n/a
OS Version: n/a
Product: NX
Application: DESIGN
Version: V7.5
Function: PART_NAVIGATOR
Ref: 001-7185773