1.) See attachment. There is a button for that. (be aware, that it is only available in chors or at least is the only thing where it will make a difference if I am not wrong)
2.) Press 1, 2 or 3 and move the object around. Each stands for one axis.
3.) Real radiosity? That is extremly time consuming but you do not need that for reflections. Radiosity will create very convincing lightening if used correctly, but it really takes a lot of rendertime. For a small overview about rendering have a look here: https://www.patchwork3d.de/rendering-45-en
I think you are talking about Raytracing, which is something A:M does most of the time anyway ;). Just activate Reflections in the rendering dialog (at least to level 2), put in reflectivity in a group or surface settings or material settings and give it something to be reflected.