Luminous skill build + other questions

Level 74 from pure questing; haven't grinded for more than 4 levels at level 40 while I was looking for spirit of rock.

I don't understand how you can switch between eclipse and sunburst or whatever they are called. When I went into eclipse, I couldn't get out of it or switch no matter what I tried.

You see the giant wings thing? You can switch between eclipse and sunburst by pressing the white and black button underneath it.

EDIT: oops sorry for double post; completely forgot i made the last one.