I have entered about 5000 contacts and i want to add some of these contacts to a smart group. This smart group is a list of our paying members. How to add individuals from the list of contacts to a smart group? i ihave done Contacts>Manage Groups. Then i select the particular Group (which is called BI Members). This gives me a list of contact who are already members (with the help of a co-worker who left the organization). Then i select "add contacts to BI Members". i enter a name of a contact and it appears in the list. i select and hit add. but the contact is not added to this smart group.
If you want to use a smart group (because it automatically keeps itself updated based on certain criteria) you start by doing a search. In your case, find all people with a membership (Search > Advanced Search). Then you save your search as a smart group by selecting all the results and in Actions > Create Smart Group. Then give it a name and it will keep itself updated for you. As others mentioned, if you want to add people manually, then you would create a regular group, not a smart group to keep it clean and simple.
Scroll down to the area on adding/removing members manually. This should allow you to do this: