Greetings EmuDevs Communinity

First of all, i would like to say thank you for whoever is going to assist me regarding my "issue".

So my question is :

How do i make a flying mount to be counted as a ground mount (So in otherwords, turn a flying mount in to a ground mount that can be used in for example Stormwind).

I heard it's something with DBC Edits or something simular (?)

Please assist me regarding this matter

Best Regards