Simon Christ

As long as your matrix implements the `AbstractArray` interface and behaves like a matrix it should work as far as I understood the documentation. Though I haven't tested it.

Can you post a few examples here?

Latest might be outdated soon, I suppose this means Plots v1.6.3 What is your version of `GraphRecipes.jl`?

well you can do it manually, I did something like ```julia builder = GtkBuilder(file) button_parent = builder["parentID"] destroy(button_parent[1]) # or other index of button push!(button_parent, GtkButton("The new button") ```

In my case `builder["parentID"]` is a `GtkScrolledWindow`, but in principle could be any container and `button_parent[1]` would be the `GtkButton` that I want to replace. `button_parent[1]` would be the same...

> That said it could make sense to define setindex for array-like containers (e.g. GtkNotebook). I think that would also make sense. Then one could write `builder["parentID"][1] = GtkButton()`, though...

`first` is actually fixed on master and `peek` deprecated, I still think it should be possible to make that iteration without copying, but I also lack concrete suggestions. So we...

Is there an easy way to get the unordered iteration? The easiest I could come up with is ```julia julia> f(flag) = ( a= iterate(c_pq, flag); while true a ===...

I'm probably missing something here, but even this is sorting after the fact is faster than the current implementation ```julia julia> pq = PriorityQueue(string(Char(i+96)) => rand() for i in 1:10)...

Is there still something left to do or can this be closed after #450?