The changes with the purpose of adding session had the proposal attribute
renamed to proposalName, which, of course, breaks all the macros and
has no added value. The same with the sessions, the new attribute was
sessionName. Being new, that would be alright, but shorter seems better.
We already know it is a name.

The changes with the purpose of adding session had the proposal attribute
renamed to proposalName, which, of course, breaks all the macros and
has no added value. The same with the sessions, the new attribute was
sessionName. Being new, that would be alright, but shorter seems better.
We already know it is a name.

Custom parameters can be added with `mgrproxy.SetParameters(jsonstring)`. These have priority over parameters and labels. No "remote" support for custom parameters.