A deployed model cannot be changed or additionally trained. If you have already deployed your model and realized that additional training data needs to be added, just duplicate your model. Duplicating a deployed model allows you to add more intents and utterances to the model and re-train it.
To duplicate a model:
Navigate to NLU → NLU Models section.
Select a model from the list of available models and click the Options menu icon next to it.
In the dialog box, enter the duplicated model name and confirm by clicking Duplicate.
The duplicated model appears in the NLU Models section.
If your NLU model has been created by the Omilia Professional Services, contact your Account manager before duplicating it.