Quote:
export_descr_ancillaries.txt
ExcludedAncillaries: Min 0, max 3. Default usage, experimentation. Extras cause CTD.
Effects: Min 0, max 8. Assumption, experimentation. Extras make it impossible to gain ancillary through a trigger and cause erratic effects if an existing ancillary is transferred.
5)
Quote:
export_descr_buildings.txt
Hidden resources: Min 1?, max 63 or 64 (not sure which). Extras cause a CTD, not including rome causes a CTD (I think), not including italy prevents Marian reforms (I think). Experimentation, experimentation. But see here for a way to overcome the limitation.
look in hard coded limits for further answers