I don't know wether it's taboo to mention QuarkXpress on this forum, but I used to use Quark 4 a lot, and in particular one feature: making the "background" of a 1-bit-per-pixel image transparent.
After placing the image in a Quark-document, usually a TIFF, I could go to the image properties and only needed to change te color of the white bits to "none".
My question: does Scribus have such a feature?
Because using these simple TIFF's (without paths or alpha channels) is so much more convenient to me than using paths or PNG's with real added transparency.
I'm using Scribus 1.4.4