A few years later and I find myself with the same question, this time less related to text and more to the idea of a group as a whole.
I designed some tickets last year, and some one just asked for a sheet with a few examples on it. It would be much easier to just copy the ticket page in scribus and paste it in the new scribus document, but in the interest of getting more tickets per page, I need to resize the ticket.
I understand the text aspect, so I converted it to outlines. The problem is the images (background and logo) that make up the ticket. Once again, I end up stuck resizing the box, not the image. My background image overhangs on one side, so simply selecting "fit to frame" and resizing won't work.
Is there no way to select a group and "lock" all the elements in place? (I ended up exporting to pdf, converting to jpg and importing back to scribus. I find it hard to believe that this is the most efficient workflow, especially considering that I have 10 tickets).