Keith_K

Sorted.  At last!
 
In the end I never used the layout sheet.  I just printed straight to the page size of Arch C (the largest pdf995 will accommodate) and my printer man fiddles using his fancy and expensive software to get the actual scale right.

Thank you both.  It was the "show sheet" icon.  You know, I stared and stared at those ruddy icons until I was blue in the face to see if any of them was "lit" and never saw it.  Maybe they should turn bright yellow when clicked upon.  Or maybe my eyes grow dim.    
 

I am now as bored as you are with this subject but thank you for trying to teach something to one of the great unwashed unteachables.
 
I have now changed the staircase back to a bog standard, boring, creativity suppressing HP Pro 2015 timber creation.
 
I am also bored to tears and temperamentally frustrated to the back teeth with my efforts to tell the system that I don't want newels under the handrail on the wall on the right hand side but that it should be newel free just as it is on the left hand side so it can just stay as it blerry well is.
 
K
 

I did a "save as" to get the second copy so I had one named Office Plan and the other Office Layout Plan (in which I was placing workstations and stuff).  I have now managed to get them the same.  It took about a day of fiddling and it seemed that a method I eventually used of working from the inside of the plans to the outside rather than outside to inside was they key.

Did what David suggested.  It looked like a junk furniture store when all my attempts to place chairs were uncovered. 

Bloody marvellous! Thank you. That is exactly what I wanted. This must be my shortest topic yet.

Thanks for your input.  I got around the problem by deleting several windows and then, when inserting them again, using the temp dimensions that come up to space them correctly.  Necessity is the the mother of...
 
...as they say. 

I now know why.
 
It would have been better if I had done all the corrective steps including the final "rebuild foundation" one.  Some people can be plain stupid.