Navlog convenience has improved today with embedded suggestions and calculation in leg editors. As a result, I was able to create a full KRNT-0S9 navlog in a couple of minutes that would have otherwise taken way more head scratching. Initial creation flow stays the same with FROM/TO/Altitudes:

After inserting your waypoints, you can use the new leg editor by clicking any leg value and this is where the new editor becomes useful. For cruise legs, if you indicate a Cruise Fuel Flow, a Distance and a Ground Speed, the editor calculates a theoretical Leg Time and Leg Fuel which show as hints at the bottom of each field. If you click the hinted value, it gets copied to the Log Data field just above it.

In the same vein, if you enter your Descent Fuel Flow and Descent Rate, the editor will calculate Leg Time and Leg Fuel, which are showing here below as hints as well.

This page is getting more convenient and should save you time. If it doesn’t please reach out and let us know how to improve.