About the "Limited Mode", if you have an interface that entitles you to "FULL MODE" then ensure you have it connected before starting the program as it checks the interface and enables "FULL MODE" if allowed otehrwise it will be in "ECO MODE" same as if no interface connected.
It certainly is not because you have not bought the software. The software is free and un-restricted. Just no DMX output without buying one of the Daslight interfaces.
As for the objects turning green, I have never seen that.
They do turn yellow (3D view) when you select them and move them using the mouse. Release the mouse button and it turn red to show it's selected.
In contruction mode the 2D views show everything in green but the selected object(s) in red. In the 3D view selected object9s) appear red with green lines to show the x,y,z planes. As can be seen in the screen shot below. This was done without an interface connected.

Are you selecting you lights in the 3D view ? If not try that. You can also select the objects in the listing view (top right pane in above picture).