How to set Symetrical Hinges ?

[gilflo]

Hello

I use hinges and rails from Infernal robotics

I want to set up 2 engines, every engine set behind a tank. Each tank is set symmetrically each side of the main tank of my spaceplane.

If i set a pair of hinges, one hinge on each side tank , whatever method i use, symetry mirror or radial symetry, every time one hinge opens upward and the other opens downward.

As i want to fix 2 engines on these hinges i would like them to open same direction to use my engines as vertical engines when i don't use them for horizontal movement.

So i am looking for a method that would allow 2 hinges to open the same direction when set on 2 symetrical tanks.

Any idea?

[LN400]

You can set each individual servo to inversed and adjust the travel range as necessary.

[gilflo]

The problem is just that each hinge is not set symetrically. Even if you inverse individually, you wont get the right move.

Problem is in the way each hinge is set on its own tank. They are set upside down.