A right click on the symbol will bring up its properties, showing the SpiceModel line plus four lines of parameters. Double clicking on the SpiceModel entry will show a drop-down menu holding the list with all the possible filters. The list contains analog and digital filters and is split, subcircuit-wise, into five groups: Analog Passive, Analog Active, IIR, FIR and MAF (moving average). These are the entries:
Selecting one entry from the list is the method of changing the Filter's functions, but it can can also be achieved by simply right-clicking on the name and then renaming it accordingly.

©Vlad, 2008 - 2015