If it doesn't have a LiFe mode, it should let you set the cell voltage under a general lithium batt type setup. You'd use 3.7v for lipo and prob 3.3v for LiFe - these may be set as options rather than variable. The programming inside the charger then knows to max the cell voltage at the correct amount.

Some chargers do it this way rather than have a separate LiFe mode like my Hyperion soes. Check the manual and make sure you use the correct voltage to trigger the LiFe mode.

Yiour charger is advertised as doing LiFe, so this should be covered in the manual.