Yes, that is possible without any problems. The DataEngine is even designed for this. The world is turning and so the requirements for the systems used are also constantly changing. Fields and even entire modules can be created, changed and deleted at any time during operation.
The DataEngine is designed so that you can react flexibly to changes in your business processes. How you can easily expand your DataEngine is explained in detail here. The Studio, the Module Builder and our Module Store are available to you in the DataEngine for this purpose. We will be happy to support you in modifying or extending your DataEngine. Just contact us!