I've started to try and use parallel steps to deploy to multiple servers for a given environment.
It doesn't seem like parallel steps has been designed to allow to group each of those steps under a particular deployment (i.e 'staging' or 'production').
You also can't run a set of parallel steps manually.
Is the ability to group these parallel steps and treat them in much the same way as we currently can with single steps (i.e assign deployment value and make trigger manual) something that's in the works?