Yoko

there is a method to run as you are riding a horse?
pol use a boolean flag in packet to see if y are in foot or horse mode.
injection can send packet with this flag set to 1?

i really doubt that (packet with 1 exists) because most emulators checking do you mounted or no just by checking is some animal "equipped" on player.

maybe packet you telling exists but it serve different case.

specify which packet do you telling, exactly