Flexible PDF Forms - Is this possible?

*DISCLAIMER* I feel like most of this is not something that is possible but since I am inexperienced in building fillable PDF forms, I have to ask just in case there are ways to do these things that I just don't know how to Google

I have a client that is wanting basically a really flexible PDF form. I've included a screenshot of part of the form so you can see the things I'm speaking of. I created a standard form but after using it for several weeks now they've decided that they need something they can have more control over. Meaning they want to be able to add/remove lines from tables in a form when they hit enter/backspace. They also want to be able to

• highlight certain rows for new entries.
• rearrange rows (ie. there's already four names in a list under "recent baptisms" on my example below. They need to add a new entry at the top but also keep the other 4 names, since this is an announcements list. They want to be able to be able to move the whole new entry row to the top instead of below the old ones.
• 
• bold text in the form boxes. Is there some kind of text formatting options that I can add?

Again, I'm sure most of this probably isn't possible within PDF forms and I told my client that they would probably need to use Excel for this type of control over everything. Just asking so I can cover all my possible options.

Thanks in advance!