Hi, if your talking about the shaking movement to make mario spin then check in the wiimote button config in dolphins settings. Im sure the default is the "S" on keyboard but not sure. If your using a controller try mapping a key for the shake.
To be honest its far better using a reall wiimote and nunchuck with dolphin as alot of games require movements that cant be performed with keyboard and mouse or gamepad. Although you can get someone with a wiimote to record a required movement and have them send it to you, then you just map the recorded movement to a hotkey, typicaly something like "ctrl+alt+5"
I hope this help you out as Im unsure what you meant and am just guessing.
Enjoy dolphin, its awesome
To be honest its far better using a reall wiimote and nunchuck with dolphin as alot of games require movements that cant be performed with keyboard and mouse or gamepad. Although you can get someone with a wiimote to record a required movement and have them send it to you, then you just map the recorded movement to a hotkey, typicaly something like "ctrl+alt+5"
I hope this help you out as Im unsure what you meant and am just guessing.
Enjoy dolphin, its awesome