ChrisatBRIL

Thanks for responses from Walt.Farrel, Dominik, and  SirAnoke
First, Walt. The method I used in PagePlus was very much more efficient than using frames. I compose pages of images, some cropped, some of different sizes for publication of scientific papers. These plates are often made up over weeks or even months, and may be changed frequently. Dragging and dropping into the already composed plate is by far the easiest way of changing my image. I tried frames, but they simply don't work in the same easy way. In any case, why take out an already excellent feature. Whilst it is likely that many people do like using frames, it is also likely that some might work the way I do, and even if nobody else likes it, I do. There is a good American aphorism 'If it aint bust, don't fix it', and that is very much apposite to computer programmers.
Dominik, thank you. I had already found this, but it is really inconvenient when I have files in many hundreds of different subdirectories. I can find what I want much more easily from using my ThumbsPlus package without having to hunt for them in a dreaded Open File Dialogue'. The drag and drop was just a perfect way of doing what I wanted. 
SirAnoke, I did try converting the images to frames, and realised I could drag and drop, but this didn't really help because of the way I structure my plates. Thanks also for the tip about not rasterizing images. You are right about paracetomol, but what is intriguing is that I never needed it with PagePlus, but the new improved version gives me migraines, let alone simple headaches.
There also was a great feature that has gone missing. On clicking an image in PagePlus, there is a little icon at the bottom 'replace image'. So easy. Why replace this with something on a context toolbar? The best context for such an icon is exactly where it was placed, attached to the image you want to replace. In the 'replace picture' action, the filename of the image I am replacing appears already filled in. I use this to check the file name of images from my microscope, before replacing it with the relevant scale bar file. With a page of many different images at several different magnifications, this allowed me then to go replace a copy image in the workspace (not on the plate) with the relevant graticule image, so I can then construct the scale bar correctly. Having lost this (another feature that, whilst not relevant perhaps to many, was relevant to me) lost - another non-bust thing that has been 'fixed', I guess.
I apologise for complaining, but I had been awaiting Publisher for a long time, and purchased it immediately when it became available.
Thank you all once more for your input.
 

In PagePlus, I was able to set up my image page by making multiple copies of my first image. I could then just drag and drop replacement images into them. It seems this facility has gone now with Affinity Publisher. This was so important to my workflow, that I guess I will just have to revert to PagePlus to do my work.
Can you please add this facility into Affinity?
 

Yes, agreed very much. Those of us who have been very loyal Serrif users (for decades!) should not be forgotten. I am really surprised that you did not think of this right from the start, especially given the similarity of design and layour of your new Publisher. It means those of us with legacy documents that might be very important will have to maintain PagePlus and the new Publisher. So please don't just put this on the backburner, but get on and implement it.

Could we please have the Align panel back on the Studio. In Serif Publisher, this was really useful for me and saves a lot of time clicking through menus. I tried to find a way of adding it, but I'm not clever enough. Thank you.

Yes, agreed very much. Those of us who have been very loyal Serrif users (for decades!) should not be forgotten. I am really surprised that you did not think of this right from the start, especially given the similarity of design and layour of your new Publisher. It means those of us with legacy documents that might be very important will have to maintain PagePlus and the new Publisher. So please don't just put this on the backburner, but get on and implement it.

Yes, agreed very much. Those of us who have been very loyal Serrif users (for decades!) should not be forgotten. I am really surprised that you did not think of this right from the start, especially given the similarity of design and layour of your new Publisher. It means those of us with legacy documents that might be very important will have to maintain PagePlus and the new Publisher. So please don't just put this on the backburner, but get on and implement it.

Yes, agreed very much. Those of us who have been very loyal Serrif users (for decades!) should not be forgotten. I am really surprised that you did not think of this right from the start, especially given the similarity of design and layour of your new Publisher. It means those of us with legacy documents that might be very important will have to maintain PagePlus and the new Publisher. So please don't just put this on the backburner, but get on and implement it.

Yes, agreed very much. Those of us who have been very loyal Serrif users (for decades!) should not be forgotten. I am really surprised that you did not think of this right from the start, especially given the similarity of design and layour of your new Publisher. It means those of us with legacy documents that might be very important will have to maintain PagePlus and the new Publisher. So please don't just put this on the backburner, but get on and implement it.

Yes, agreed very much. Those of us who have been very loyal Serrif users (for decades!) should not be forgotten. I am really surprised that you did not think of this right from the start, especially given the similarity of design and layour of your new Publisher. It means those of us with legacy documents that might be very important will have to maintain PagePlus and the new Publisher. So please don't just put this on the backburner, but get on and implement it.

Yes, agreed very much. Those of us who have been very loyal Serrif users (for decades!) should not be forgotten. I am really surprised that you did not think of this right from the start, especially given the similarity of design and layour of your new Publisher. It means those of us with legacy documents that might be very important will have to maintain PagePlus and the new Publisher. So please don't just put this on the backburner, but get on and implement it.

Yes, agreed very much. Those of us who have been very loyal Serrif users (for decades!) should not be forgotten. I am really surprised that you did not think of this right from the start, especially given the similarity of design and layour of your new Publisher. It means those of us with legacy documents that might be very important will have to maintain PagePlus and the new Publisher. So please don't just put this on the backburner, but get on and implement it.

Yes, agreed very much. Those of us who have been very loyal Serrif users (for decades!) should not be forgotten. I am really surprised that you did not think of this right from the start, especially given the similarity of design and layour of your new Publisher. It means those of us with legacy documents that might be very important will have to maintain PagePlus and the new Publisher. So please don't just put this on the backburner, but get on and implement it.

Yes, agreed very much. Those of us who have been very loyal Serrif users (for decades!) should not be forgotten. I am really surprised that you did not think of this right from the start, especially given the similarity of design and layour of your new Publisher. It means those of us with legacy documents that might be very important will have to maintain PagePlus and the new Publisher. So please don't just put this on the backburner, but get on and implement it.

Yes, agreed very much. Those of us who have been very loyal Serrif users (for decades!) should not be forgotten. I am really surprised that you did not think of this right from the start, especially given the similarity of design and layour of your new Publisher. It means those of us with legacy documents that might be very important will have to maintain PagePlus and the new Publisher. So please don't just put this on the backburner, but get on and implement it.

Yes, agreed very much. Those of us who have been very loyal Serrif users (for decades!) should not be forgotten. I am really surprised that you did not think of this right from the start, especially given the similarity of design and layour of your new Publisher. It means those of us with legacy documents that might be very important will have to maintain PagePlus and the new Publisher. So please don't just put this on the backburner, but get on and implement it.

Yes, agreed very much. Those of us who have been very loyal Serrif users (for decades!) should not be forgotten. I am really surprised that you did not think of this right from the start, especially given the similarity of design and layour of your new Publisher. It means those of us with legacy documents that might be very important will have to maintain PagePlus and the new Publisher. So please don't just put this on the backburner, but get on and implement it.

Yes, agreed very much. Those of us who have been very loyal Serrif users (for decades!) should not be forgotten. I am really surprised that you did not think of this right from the start, especially given the similarity of design and layour of your new Publisher. It means those of us with legacy documents that might be very important will have to maintain PagePlus and the new Publisher. So please don't just put this on the backburner, but get on and implement it.