title: How to create funnel with event's parameter value in Firebase?
body: <p>I have a game with a lot of levels (Something like 2000). I want to create a funnel to see players' progression through these levels and balance out too-hard ones.</p>
  
  <p>I cannot send an unique event for every level (e.g. "Level 0040 Completed") because 
  Firebase has a limit of 500 unique events. So I need to send an event like "Level Completed" and send the level number as parameter. But I don't know how can I create a funnel with that parameter. Is there any way to create funnel with a parameter of an event?  </p>