Standard and temporary lists have on them only the people that you add, either individually or in bulk. The only differences between standard and temporary lists are that temporary lists will be deleted from VSys when you exit the program, and are only available to the current user. If you expect to use it after today, make it a standard list.
Adding People to Lists
To add people to lists:
The same tools used for adding people to a list work for removing them, just look for the Delete from list and Delete "name" from list menu options.