Hello,
How can we redirect from one scene to another ?

these is no API currently for switching between Scene roSgNodes.
so as practical advice, work under the same roSgScreen and Scene, instead say use Group nodes as a "para-scenes": attach all elements for a given visual screen (aka design scene) under a single Group node, then attach that to the Scene. When need to change to a new screen, detach (or hide) that group, replace it with another. Functionally this will work the same as if the "master scene" was replaceable