I don’t think that’s right, you can listen to an event that is triggered when the mouse position changes. See https://makie.juliaplots.org/stable/interaction.html#Mouse-Interaction
These examples might also help you get started: http://juliaplots.org/MakieReferenceImages/gallery/mouse_picking/index.html
http://juliaplots.org/MakieReferenceImages/gallery/mouse_hover/index.html