Mix page orientations - Landscape orientation

Hello, I recall reading somewhere that it’s not possible to mix page orientations within a single document. However, I’m unable to locate the source of this information at the moment. Based on the available settings, it appears that this might be the case.

Could anyone please verify or refute this? Thank you.

in the manual there is no mention of setting the orientation for one page only, and neither there is in the Jolly writer—a hint that it may not be possible like you say.