Jeff was rather giddy as he looked at everything he could switch between himself and the mare on screen, but he wanted to start small, and work his way up through the changes rather than just dive straight into the deep end of transplanting traits and history.
So to start with, he targeted the horse's hind hooves, and his own feet. Keeping it simple he also made sure that reality would adjust so that no one cared there was a horse with a pair of human feet and he had hooves.
He of course would notice, but that was semantics, and with the change ready, Jeff hit confirm.
A few seconds passed, causing him to hum as he raised his feet, wiggling his toes in confusion before sighing and setting them on the bed by spinning his chair around, frowning for a moment... before a small tingling sensation began.
Jeff blinked and watched as his toes started to bunch up, and he winced as he heard, rather than felt, his feet crack and start to shrink. His feet were balling up and turning black, and he watched in amazement as they did thins... before after only a couple a seconds, he had a pair of horse hooves attached to his legs rather than human feet.
Slowly Jeff removed his legs from the bed and set his hooves on the carpet, standing up even slower as he balanced on his new feet. With a smirk he looked at the Chronovac, excited for what was to come next.