[Endoperez]

Simple-enough suggestion:

If a commander has no commands, can research and is in a province with a lab, it will count as a researcher and increase the research pool.
These commanders will show up in the research screen as normal. Commanders can still be set spesifically to research, so that they e.g. aren't found by the 'n' command.

Cainehill's request:
Capability to hide commanders set to researcher, as the DomII Tab option, in both main map view and in F1 view.

A variant of the earlier:
Capability to choose which commands are visible through a set of variables including but not limited to: magic in general, spesific magic paths, sacredness, afflictions, old age, number of units lead, has magic items. Preferably in both F1 and main map view.