Registration Question about checkboxes

Hi,

I am trying to use community builder for the purposes of creating an online directory of voluntary organisations in my area.

I was thinking of using a user list to display the directory of organisaitons.

I included a checkbox through the field manager.
for organisations to Opt in or opt out at registration.

I am wondering if there is a way of only having the organisations that check the opt in box appear in the user list only and omit other users.

Any suggestions hugely appreciated.

Many Thanks.

standard CB user list functionality - use filter in user list.

Many Thanks.
Don't know how I missed that!