Part Modeling > Modifying the Part > Read-Only Features > To Make Features Read-Only
  
To Make Features Read-Only
1. Select the feature to make read-only.
2. Click Model > Operations > Read Only, and select one of the following options:
Set as last read only—Makes the selected feature and all previous features read-only.
Set all as read only—Makes all the features in the model read-only.
The read-only features move to the Read Only Features folder at the top of the Model Tree.