Additional Global Split shift setting in work practice set up to accommodate for Duty and FDP Separately

In Work Practice Set up you can specify the amount of a Split Duty rest period is to be counted as Duty. This will apply to a Split Duty and a Split FDP, however, it would be handy to be able to specify different Percentages counted for Duty and FDP (e.g. have the Split Duty rest count for 50% but Split FDP rest count as 100%)