Solving this with an example from real scenario
1. CL, should be generated for calendar year (i.e., 01.01.2009-31.12.2009)
2. EL, should be generated once in 6 months {(i.e., 01.01.2009-30.06.2009 1st block of the current year, and then to 01.07.2009-31.12.20092nd block of the current year)} any leave balance in the 1st block should be carried forward to 2nd block and leave balance of 2nd block carried forward to the 1st block of next year and the limitation is 300 EL.
3. HPL, should be generated once in 6 months (i.e., 01.01.2009-30.06.2009 1st block of the current year, and then to 01.07.2009-31.12.20092nd block of the current year)} any leave balance in the 1st block should be carried forward to 2nd block and leave balance of 2nd block carried forward to the 1st block of next year
02 For EL > Accural Period Tab you have to select Time Evaluation Period and in Transfer Tab select other period and give six months , for this Six months you have to Define Period Parameter and assign here.
03 For HPL you can proceed same as step 2.
For Leave Carry forward , copy the Rule TQTR and use VARSTCURMO & VARSTREDY Operation to carry forward the Leaves once in a six months.