if you wanting to add this to primitive and not add all the engram entry's manually only engram you really need is the Engineers Workstationmakes things alot asier and all items already in the workbench
OverrideNamedEngramEntries=(EngramClassName="EngramEntry_EngineersWorkstation_C",EngramHidden=false,EngramPointsCost=0,EngramLevelRequirement=1,RemoveEngramPreReq=false)