What settings steer the functionality of filtering in the grid?
I have 4 similar lookup fields, ID with lookup to base table.. and as far as I can see 2 have a filter option like below and 2 don't.. what setting causes this difference? I want all fields to have a similar filter option.
![](https://uploads-eu-west-1.insided.com/thinkwise-en/attachment/2bca05c6-f1a6-46af-aa77-a1d7e2661dba.png)