Interactive Menu with AlgebraOfGraphics / GLMakie

Specific Domains Visualization
,
2

This comes closer, but now I don’t know how to delete the previous plot (and if I am roughly doing the right thing):

var=Observable("y1")
fig=Figure()
axentry = draw!(fig[1,1:1], data(df) * 
    mapping(:x1, Symbol(var[]), color=:x1) * 
    (visual(Scatter) +  smooth(;span=0.3, degree=1)))
Colorbar(fig[:, 2])

menu = Menu(fig, options = ["y1","y2"] , default = "y1")
fig[2,1] = hgrid!(
        Label(fig, "Variable", width = nothing),
        menu,
        tellheight = true)
    
 on(menu.selection) do s
         var[] = s
         draw!(fig[1,1], data(df) * 
    mapping(:x1, Symbol(s), color=:x1) * 
    (visual(Scatter) +  smooth(;span=0.3, degree=1)))
end