TLB - Technical Log Book is a section where you can add exact TOFF & LNDG times along with the number of cycles done by particular aircraft in the trip.
First step to using TLB is configuring start values for TAH and TAC calculations for each Aircraft that is subject to the calculations. These values will show in CAM data in Airframe section.
Once you have configured the aircraft you can start inputting data by Adding new TLB entry. The data inserted here can be used for TAH (Total Aircraft Hours) & TAC (Total Aircraft Cycles) calculations (if a checkbox 'Calculate TAH, TAC using TLB' is marked in Settings > General Settings'). The calculation is then displayed in Settings > Fleet section.
If you want Leon to show TAH & TAC data according to TLB details, go to section Settings > General Settings and mark a checkbox Calculate TAH, TAC using TLB.
When adding new Maintenance, you will be able to check TLB Limits for the day of the Maintenance, by clicking Check button and it will display as per below screenshot.
You can sort data by TLB number or by time in the filter.