JuMP: Constraint with a huge expression

Hi @tmigot
The package looks very interesting, especially the Indirect Shooting part. Is there a plan to add 1. Multiple phases 2. Mesh Refinement 3. Scaling to the package?

It is mentioned here that ADNLPModels.jl is not very efficient for large models. Also, in the benchmark here NLPModels seems to be slower than JuMP. So it would be interesting to see how the package performs on some largish problems.