Station profiles allows you to define a profile for where you are operating from including your operating callsign, gridsquare, dxcc, state, cq, itu and sota.
This is then made available via the "stations" tab when adding a QSO as a drop down.
This required extra SQL so you'll need to run the SQL query.
ALTER TABLE `cat` ADD `downlink_freq` INT(11) NOT NULL AFTER `mode`, ADD
`uplink_freq` INT(11) NOT NULL AFTER `downlink_freq`, ADD
`downlink_mode` VARCHAR(255) NOT NULL AFTER `uplink_freq`, ADD
`uplink_mode` VARCHAR(255) NOT NULL AFTER `downlink_mode`, ADD
`sat_name` VARCHAR(255) NOT NULL AFTER `uplink_mode`;