Filter function of subfleets and fares

[SkygroupVirtual]

Is it possible to add a filter function to the "fleets" and "fares" inside the admin panel just like the one that is in "flights"? Please see the attached picture.

Here

We are creating a lot of fares and different airlines and it would be very helpful to sort for specific fares / specific airlines.

For example we have 15 DLH subfleets and 9 fares only for LH, but we are building more and more airlines.