Hi Ron and thanks for that... The zoom to Fit and the Fit to Width are not quite what I was getting at. When zooming in and out, it's important to my workflow that the document edge automatically fits tight to the document.
I think that if Serif want people to make the switch then some of these features (like Cascade, Tile and window bounds fitting the document) would need to be implemented. Otherwise for the workflow that I'm talking about, it is just a mess of sizing windows and window shuffling.
And re: the Windows menu/Float All... I am on Mac as Walt pointed out there is a difference.
Thanks again,
Richard