For now , the way you can also do it is by sharing a skill that becomes a passive. this skill should give you some stats/effects you need.
There are some plugins that allows you to do this, visustella and some others. I personally recommend this one, which is free:
https://forums.rpgmakerweb.com/index.php?threads/passive-skills.125768/
Thank you for your suggestion.
Im planning to do a small update soon. Expanding the linking to also share some parameters could be possible.