[Gretl-users] Kalman filter and series components

Greetings! I need to know if it is possible to separate series into components by using the kalman filter with gretl, for example: state and measurement equations. if i understood the theory , it is possible to discompose any non stationary series into a a cyclical, trend and random component. how would i plot these components and/or store the data. Thanks in advance!!!!!