Jumpert8sg plus trims

Trying to trim an airplane in the air is next to impossible. Moving the trim switch one way or the other the servo hardly moves,how do I get more movement?

You have to adjust the trim step size, by default it is very (too) small steps for me...(Especially to dial in a new plane....)
Also take care, to verify trim switches they are assigned to the designated channels, I had made a mistake once.....

Thanks for your reply Fernandez,I'm not very familiar with deviation I find it difficult to used to turnegey.If you could tell me how to do that I would be the happiest guy on the planet.lol.

Found how to change trim steps but they only work on high rates. Wonder why deviation is so user unfriendly. Things that should be easy aren't.