Generate list items

Dear Mendix community, I need a kind of mapping hashmap/hashset , with key-value pairs, where a value is actually an object having more properties. I could do it manually by creating an entity one by one, also including the key as a property of the object, then adding them to  a  list. But doing it one by one is very tedious (having 50 different keys).    How can I achieve this in mendix?    Is there a trick to it, like wiring it in a file (JSON, CSV),loading and mapping it to objects?  Thank you.      
1 answers

Hi Patrick,

If understand it, you want to create objects using the data you have.

MxReflection enables you to map your entities in Mendix, and use it as you want.

Hope it helps.