You can add members to 'Lists' automatically using 'Filters'.
To add all new members to a list
- Add a required question (using 'Confirmation' as the column name for example) to your registration form with only one answer (E.g. 'I accept the terms of this group')
- Create a list called 'New Members' or similar which contains a filter. Set the filter to include all members who's 'Confirmation' colum contains 'I accept the terms of this group'.
N.B. To add filters to a list, click 'Member Lists' in the 'Members' tab, and then click 'Edit' on the list you want to add a filter to. The filter options are on this page.
To add new members to different lists
Take the same steps as above, but use different questions or one question with multiple answers to generate your filters. This could be used to ask members what type of membership they require (and later used to send payment requests to those memebrs for different amounts), or sort members according to the area they live and so on.