I am trying to use PowerApps to build an App. However I have noticed that some entities, like Invoice or Order, are missing from my list of entities in PowerApps. At the same time, if I go through Power BI and then use a data flow, I can map the data to all the default entities, including Invoice and Order. Is there a way to harmonise my model between Power BI and PowerApps so I can get the full default selection in both systems?