Hi Chirs, I purchased yesterday TOPCAT, great!
I know TOPCAT is not a fuel or file planner but I'd like to view in the next release a more in deep fuel field splitted, like:
1) add Contingency of Fuel field, normale is 5%
2) add HOLD fuel in time
3) add Taxi fuel in time (I've seen you can set time in configuration option) but report this "autofilled" field also in fuel section
4) add Alternate Fuel
I'd like to see all those fields splitted and autopopulated when click on ESTIMATE fuel, so any user can see how much fuel is used for any single phase of flight and eventually can modify it.
I hope you take on care my suggestion

TOPCAT is GREAT!