Can't find it , rare i know ;-)
Got various PTZ zoom positions (Birddog FP120) set as inputs.
Going from one (zoom) position input to another by selecting the input works great

Caveat: can seem to find how to change the speed between the different positions input selections.
Speed in vMiz PTZ settings does not take
Speed setting within the camera does not take
Changing time in transitions doesnt take

Any hints ? Is vMix missing some VISCA options as i can vary the zoomspeed using an RC Joystick?

FYI the zoomtransitions do actually change the physical zoom of the camera (what i want :-) )

v25.0.0.32
Sony Visca over IP

Seems related https://forums.vmix.com/posts/t25947-PTZOptics-Camera---ZOOM-Speed-in-PTZ-Presets--VirtualInput