FUTABA 12Z Series Instruction Manual page 56

Trim setting
*The trim setup screen is displayed.
Trim selection
*The trim setup screen is displayed.
*The setting can be changed for each condition.
After the set mode is changed from group mode [GROUP]
to single mode [SINGL] at the trim setup screen, only
setting of that condition is changed by control change;
setting of other conditions remains the same.
Trim rate setting
(When the enter button is pushed for 1 second, the trim rate is
reset to the initial value.)
Control step amount setting
(When the enter button is pushed for 1 second, the control
step amount is reset to the initial value.)
*When the value is made large, the change per step becomes
larger.
Trim mode selection
56 <Functions of Linkage Menu>
Separate/combination mode selection
Group/single mode setting
When the flight conditions are set, operation
control and trim can be switched for each condition.
[Example of use]
Use when you want to switch butterfly and
throttle stick in the glider mode, etc.