Plot position on the screen ? How to controled ? beckend gr() Plots.jl

New to Julia
1

using Plots; gr()
How to set position of plot on the screen ?
julia> bar(rand(5),wsize=(800,800),position=(0,0))
ERROR: Unknown key: position
Stacktrace:
[1] error(::String, ::Symbol) at .\error.jl:42

Paul