Extended customizable user profiles and filtering by WP role

Hi, a few of questions on this plugin.

1. It says this plugin has extended customizable user profiles. How can I set these up? I can’t seem to find them. Are these extra meta fields I can add for members to fill out? checkboxes, input fields etc

2. Is there a way to filter the main members list (/members) by a WordPress Role? I want to just show 1 role that I have created via Justin Tadlock’s members plugin.

3. Could the search box on the member’s listing page be enhanced so it could search the members based on meta fields from their profiles? Ie searching by location or age.