This applies to 15.1, 16.0 and 16.1

If I'm in a DD class definition within the studio and I'm trying to use codesense for e.g. UserError it doesn't provide this method.

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To reproduce:

- open the VDF 16.1 Order Entry sample
- open the users_datadictionary
- Add "validate_save" from the events tab page from the properties panel
- Start typing "Send User" and notice the codesense list coming up. It lacks e.g. the UserError method.