[chirp_users] How to "aliasing"

help me please

I read a lot and as described in WIKI is some function to write the same radios ad different manufacturers. (Aliasing) Nowhere I read how. Please can someone send me a link or a short tutorial how to?

Can I edit it in any file?

I have CRT 279UV it is clone of QYT KT-8900D

Thank you

Vít