Is it possible to upload a csv to fill up a database instead of having to manually input the details of an entity? For example: Service (entity) has attributes name, description, and associations to Proces and Network (both selected by dropdown menu). Upload a file that has proces;network;name;description
If you go to the appstore from the modeler you can go to the Excel Importer app, then click the All Versions tab en select the version of the app which is compatible with your Mendix version. That way you don't need to upgrade.