right wing keeps dipping down

[SsSsSsSsSnake]

there are options for keys or axes to use for trimming plus options for up 1 notch down 1 notch or level .im a complete beginner in trimming so which do you use and do you have to do it all through the flying,also my ch fighterstick in IL2 the wheels on the base let you trim the aileron and nose etc but this doesnt seem to work on this 1, also the wheels when i try to assign say its the same axes for ailerons so no seperate function,didnt do that with il2?
thanks lot of questions i know lol