How to … few questions

Hello All,

I actually am doing a plane design and I face the problems
- I cannot increase the width (length and position is ok) of the control surfaces and neither its maximum range of angle (I would like to increase the max angle of roll control surfaces)
- I cannot make use of slat or roll spoiler for example, they exist but are not linked with any command ?

Thanks,

Jeff

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How to … few questions