[Script] Any ideas for rematching trainers in a fire red hack?

[A random trainer]

So, can anyone suggest any idea of rematching trainers in a fire red hack because pokenav won't be available I'm thinking of using vs seeker but I am wondering if I should use another item or some function can anyone help me?
(Also this is my first thread ever created so I hope nothing goes wrong)😊

 

[Dr. Seuss]

Hey there!
I had to move your post to this forum since you posted your question in an incorrect area.

About your question. It is a simple as using a flag and check its status to start a different battle based on that flag

You can read this tutorial for further information about scripting and flags https://www.pokecommunity.com/showthread.php?t=164276

 

[Tacobell24]

Are you meaning you want suggestions for a mechanic to rebattle trainers?

Since I say just flat out being able to talk to them and rebattle would make far more sense and be less clunky than any official means GF have used.