You cannont edit the dlMemSubmitPerms in AD if it has never been edited.
You must edit that attribute in the LDP tool on the server that has Active Directory. (DirSync)
Search LDP.exe and open the tool
Click Connection > Connect > Enter as is
Click Connection > Bind > as current user
Click View > Tree > drop down smcsc.edu
Find the object you want to edit (EG. _FullTimeFaculty)
Right click on the object > Modify
Under Attribute: type in the name of the Attribute you want to edit (EG. dlMemSubmitPerms
Under Value: type in the new value
Operation = Add
Click Enter - this will add that attribute to the list below.
Once done adding click Run.