Imported STEP file created multiple solid bodies. Need to combine them all into a single solid with no parameters.
Solution
To produce a single solid body with no parameters:
1. Select Menu->Insert-> Combine-> Unite.
2. Select an initial imported STEP solid body as the Target and select the remaining solid bodies as the Tool bodies. OK to Unite all the bodies to a single solid body
3. Select Menu-> Edit-> Feature-> Remove Parameters and select the United body in the work area. OK.
This removes parameters from the United bodies and deletes the original un-parameterized bodies so only a single solid remains in the Part Navigator and in the Work Area.
Notes and References
Hardware/Software Configuration
Platform: all
OS: n/a
OS Version: n/a
Product: NX
Application: DESIGN
Version: V12.0.2
Function: FEATURE_MODEL
Ref: 001-9853941