hi peter
but am wondering how I would select and rotate all document content at once.
afaik you can't.
but depending on the look of your final spreads, you might like to see the open calendar while working on it anyway.
if it's a bit more complex than an image at the top page and the calendar tables at the bottom one, i would probably work with a single page layout in the size of the open calendar (one final calendar spread is a single page of the working file), export it as an intermediate .pdf file and rotate it with a tool like
jpdftweak.
the rotated file could then be placed in image frames spread over the double pages of a second scribus document (double pages with the final page size, binding on the left side for the rotated content…)
but in fact, i neither know what your calendar should look like, nor what magCloud asks for.
…it might be a good idea to
file a feature request for a top binding option…
utnik