Suggestion for Possession
 

On the Adjust tab the possession option has you select a spirit type and the force. It then modifies the character based on those two items.
My suggestion is that instead of having to select the spirit type and force you select an spirit character in the portfolio and use it modify the character.

Is this possible. It would allow for skills and other things to be merged. Right now the spirit could be a free spirit and it's skills are not listed on the possessed character.