Is there anyway to prevent grid edit report entries on a form in view mode but allow them in add and edit?

Thanks for your help.  I now have this working and it's an interesting solution.  

There is only one issue that I have left.  My dummy form has no fields assigned to it as instructed. However, the grid edit form that appears has one field (it is the field that links the child records to the parents).  It is possible to edit these which breaks the existing connection to the parent (even though you can't see the other fields in the records).  I looked for a setting in both the original grid edit report and the dummy form that might cause this but haven't been able to resolve it thus far.