Dynamically load profiles

## Issue

We currently only provide one, hard coded profile.

## Solution

Provide a block which takes a PID and transforms itself to a profile, if the PID defines one. It is possible to query a DTR for all available profiles, so this could also be used for some kind of autocomplete or search. For a dropdown, probably too many experimental profiles exist.

Start by locating where the single hard-coded profile is defined and where PID records are generated. Review how a PID can be used to identify a profile and how DTR profile discovery would fit the client-side application. Done means a profile can be selected dynamically from a PID, with any discovery or autocomplete behavior clearly scoped.

Written by the indexing model from the issue text.