I was thinking on setting it as an optional setting as a plugin param with an option for the same exp as in party, the exp as subparty (50%), or none, I'm not sure I can make a customized amount without messing up with the very exp system and making this into another plugin (Which can also be done, but hopefully won't be needed). I'll work on it as soon as I'm done with SMEAP demo and videos.
As for the later, I take you are asking if would be possible to add some kind of notification when the equiped actor levels up, and learns an inheritable skill. It should take for a while, since that starts to get visual, but I can do it.