some setup questions

I read the docs and still had some questions.

1. On the add listing page there is a field that says expire date. How can that be removed? https://staging3.texasweedsyndicate.com/add-listing/?listing_type=gd_place&package_id=1

2. When you create packages and you fill in the package description where does that show up? On the add listing page it just shows the package but it does not show what you get if you choose it.
I am looking to create a page like this https://texasweedsyndicate.com/memberships/ where someone can see exactly what they get when they sign up for a package and I can then pass them to the form with the correct package already selected.

3. Is there a setting that when a paid package expires or gets canceled that is can just downgrade to a free one?

thanks