1. No, there is no sort feature in the current version of the theme.
2. Our themes are not encrypted, so you are free to customize as you wish. So yes, they can be changed.
3. As above, if you have the coding knowledge to make the adjustments you want, then yes.
4. Yes, this can be done with some minor adjustment to the theme code.
The Clipper theme is new, and only into it's second version release so there is certainly plenty of room for development. We encourage feedback from our community in the
AppThemes Ideas Exchange as it lets our development team know what our customers would like to see in future releases.