Quick answer: Clicking on the ReCalc button causes a reharmonization for the particular chord area.
ReCalc button in Liquid NotesLiquid Notes is equipped with a ReCalc-button for each chord. Clicking the recalculation button causes a reharmonization of that particular area if the harmonic analysis didn't deliver satisfactory results; i.e. it recalculates the area in order to make the melody fit optimally within the context of the surrounding chords and scales.
Here is where to find the ReCalc-button in Liquid Notes:
Note: Click on this button whenever you feel that the results of the harmonic analysis of Liquid Notes when opening a project did not correctly identify chords and melody. You may also want to click the ReCalc-button if you have made a change to the ReHarmonize Settings and want to reharmonize particular chord areas - http://re-compose.desk.com/customer/portal/articles/562244.