Glad you got most of it working.
On the timer thing, the lowest I can get is 5% which is a single click.
Go to LINKAGE->TIMER
Start switch + J3 (mode 2)
Then after selecting switch got to ON/OFF (Set)
Tap that
On the right tap REVERSE so the green is on top and red pn bottom
Set throttle stick where you want it, one click is about as small an increment you can do.
Tap ON/OFF to set position.