NX Post Builder Calculating TOOL Measeure & TOOL Check

[nxexplorer]

Hello Expert,

One of our 3-axis CNC has being implemented TOOL MEASURE at Start of Operation and TOOL CHECK at the end of operation.
This is interesting job, that I should create :

a.-Every tool change, CNC must doing TOOL MEASEURE with 3 Minutes time consumed in start of operation.
b.-No tool change from previous operation (same tool), CNC will not doing TOOL MEASEURE for current start Operation.
c.- If there is no tool Change in Next Operation, CNC must not doing TOOL CHECK, No 3 minutes added. If next operation has tool change, CNC must TOOL CHECK with 3 Minutes time consuming.
d.-End of operation, CNC must doing TOOL CHECK.

Need help:
1:For point b, I still can not figure it out, still look for the solution.
2:How to collecting all time both MEASURE TOOL and CHECK TOOL into Machine Time (mom_machine_time)at End of Program.

I grateful for any suggests and help..
Best Regards,
Maryadi
Jakarta-Indonesia