Yeah, I can do a working and a minimal example, but not a MWE.
Here’s the next try as gist and also an src/mwe.jl in the git repo.
(It’s considered minimal as it implements the things I need: JSON parsing and buttons for pause/restart).
newvalues(number, sleep_time) updates the input_string variable number times with sleep(sleep_times) between.
julia> include("src/mwe.jl")
0x000238a0fd5d4d40
julia> scene
julia> newvalues(1, 0.1)
julia> newvalues(100, 0.01)