When the following piece of EJB3 annotations is anywhere in the script
then the "Fix Import" function does not work anymore, i.e. does not seem to 
startp-up (Class EValueQuantity is not recognized). Commenting the annotations 
out 'fixes' the problem.

@Embedded @AttributeOverrides( {
        @AttributeOverride(name="quantity", column = 
@Column(name="economicQuantity") ),
                @AttributeOverride(name="unit", column = 
@Column(name="economicUnit"))
    }) 
private EValueQuantity economicQuantity;    

BTW I also have to press ALT-SHIFT-F twice, in most scripts. First to get all 
imports exept 'Serializable' and then again for 'import Serializable'. It seems 
to work like a toggle. Pressing the combination again will remove the 'import 
Serializable'. 
I suspect it also has to do with the annotations:

@Entity(access = AccessType.FIELD)
public class EUnit implements Serializable{

    @Id @Column(length=3) private String id;
   
    @ManyToOne @OrderBy("sortOrder") private EUnitType unitType;
    
    @Column(length=15) private String description;
   

Thanks for your help should you have time to get round to it.