Re: F3 used to jump to subprocedure or subroutine?

On further reading of the manuals, I found a shortcut key which helps if you 
have just changed a line
in the region of where you press F3.  You can then press Ctrl J to return to 
the last edit point which doesn't
do what I was after, but is not far off.  

Unfortunately you cannot just overtype something with the same letter (prior to 
pressing F3) as it does not take the F3 then.  However, if you move off the 
line having overtyped a letter and then return to that line and press F3, then 
Ctrl J works ok.  Bit of a fiddle but can't see another way.