This command adds an idea group to the country with the specified country tag.
power [stability key / idea group key / tech key] [country tag]
|Stability Key / Idea Group Key / Tech Key||The stability key, idea group key, or tech key you wish to add to a country.|
|Country Tag||The country tag of the country you wish to add the previously specified stability/idea/technology group to. If not specified, this will default to the country you are currently playing as.|
The above command would add the 'economic_ideas' idea group to the nation you are currently playing as. See idea group IDs for idea group keys.
power defensive_ideas POL
This command would add the 'defensive_ideas' idea group to the country with country tag POL (Poland, see all country tags.