Represent the Design Data section of the data dictionary myDictionary_ex_API.sldd with a Simulink.data.dictionary.Section object named dDataSectObj.

myDictionaryObj = Simulink.data.dictionary.open('myDictionary_ex_API.sldd');
dDataSectObj = getSection(myDictionaryObj,'Design Data');

Add an entry myEntry with value 27 to the Design Data section of myDictionary_ex_API.sldd. Assign the returned Simulink.data.dictionary.Entry object to variable e.

e = addEntry(dDataSectObj,'myEntry',27)

e = 

  Entry with properties:

              Name: 'myEntry'
             Value: 27
        DataSource: 'myDictionary_ex_API.sldd'
      LastModified: '2014-Aug-26 18:42:08.439709'
    LastModifiedBy: 'jsmith'
            Status: 'New'

Change the value of myEntry from 27 to the character vector 'My New Value'.

setValue(e,'My New Value')
e

e = 

  Entry with properties:

              Name: 'myEntry'
             Value: 'My New Value'
        DataSource: 'myDictionary_ex_API.sldd'
      LastModified: '2014-Aug-26 18:45:58.336598'
    LastModifiedBy: 'jsmith'
            Status: 'New'

Represent the data dictionary entry fuelFlow with a Simulink.data.dictionary.Entry object named fuelFlowObj. fuelFlow is defined in the data dictionary myDictionary_ex_API.sldd.

myDictionaryObj = Simulink.data.dictionary.open('myDictionary_ex_API.sldd');
dDataSectObj = getSection(myDictionaryObj,'Design Data');
fuelFlowObj = getEntry(dDataSectObj,'fuelFlow');

Return the value of the entry fuelFlow and assign the value to the variable fuelFlowValue.

fuelFlowValue = getValue(fuelFlowObj)

fuelFlowValue =

   237

Represent the Design Data section of the data dictionary myDictionary_ex_API.sldd with a Simulink.data.dictionary.Section object named dDataSectObj. myDictionary_ex_API.sldd references the data dictionary myRefDictionary_ex_API.sldd.

myDictionaryObj = Simulink.data.dictionary.open('myDictionary_ex_API.sldd');
dDataSectObj = getSection(myDictionaryObj,'Design Data');

Create a Simulink.data.dictionary.Entry object representing the entry fuelFlow, which resides in myDictionary_ex_API.sldd. Assign the object to variable e.

e = getEntry(dDataSectObj,'fuelFlow')

e = 

  Entry with properties:

              Name: 'fuelFlow'
             Value: 237
        DataSource: 'myDictionary_ex_API.sldd'
      LastModified: '2014-Sep-05 13:12:06.099278'
    LastModifiedBy: 'jsmith'
            Status: 'Unchanged'

Migrate the entry fuelFlow to the reference data dictionary myRefDictionary_ex_API.sldd by modifying the DataSource property of e.

e.DataSource = 'myRefDictionary_ex_API.sldd'

e = 

  Entry with properties:

              Name: 'fuelFlow'
             Value: 237
        DataSource: 'myRefDictionary_ex_API.sldd'
      LastModified: '2014-Sep-05 13:12:06.099278'
    LastModifiedBy: 'jsmith'
            Status: 'Modified'

Because myDictionary_ex_API.sldd references myRefDictionary_ex_API.sldd, both dictionaries belong to the same dictionary hierarchy, allowing you to migrate the entry fuelFlow between them.