I haven’t done much work with my Solar Plexus other than a full Chakra Cleanse each morning. Right now my focus is on my Root & Sacral Chakras (I work with my Earth Star too, but that one isn’t as commonly referred to by most people).
I feel it as energy moving through me though, it’s there like my intuition or empath abilities. I have had numerous blockages & things interfere with anything that has to do with my energy, chakras, magic… I have been basically working on building my practice back up rather than doing things on the fly or in a rush.
I would like some more information regarding this topic though, so I am going to keep tabs on it. If I find anything that may be useful, I will definitely add it to this thread.
I did find these by @christina4 that mention the Solar Plexus & limited information on it’s functions.
Ancestral Healing With Crystals 
Next week I will be adding a post to the Chakra Information post: Basics of the Solar Plexus