S! All.
I've found an issue related with TTO... or perhaps I might be doing something wrong.
I've made several missions for single player with the FMB, in which I'm the leader of the first flight, and one or more friendly flights. The mission starts with the flights in the parking area.
Well... my AI wingmen don't start their engines with no delay as it should be expected (they don't start the engines at all, but rarely they start them after 6 or more minutes after the mission's beginning).
Regarding with this issue, when I send the order "start engines" (Tab, E, 1) apparently it doesn't work.
The only way that I've found to solve this issue is hitting the "Autopilot" twice (as quickly as when anybody uses a toggle buttton): with the first hit the AI wingmen begin the starting procedures immediately; the second hit is for to recover the control of my own aircraft).
The "only AI flights" or squadrons start without problems after the programmed delay.
If this is not an issue, but a mistake using the FMB for TTO, I'll be grateful for any advice to use it better.