Yes. Turning them in the window to keep the scape straight is fine. I stake mine only because I don't want the blooms smashed up against the window. If your scape grows tall and thin, it may bend or break due to the weight of the blooms.
K

I noticed my Limona grew 2 perfectly straight and tall scapes in a not-too-sunny window and those of Rapido, getting the same amount of light, have grown somewhat bent. Should I infer from this that some hybrids are more likely ( or maybe are even known) to grow "straighter" scapes than the others?

Lena