Zoom slider battles

[Andrew Parsloe]

It has taken me a long time to get to grips with the zoom slider. There 
are now three relevant settings: Tools > Preferences > Look & Feel > 
Screen Fonts > Default zoom, the slider, and for someone who uses 
preview, Tools >  Preferences > Look & Feel > Display > Preview size. 
Too much flexibility! Spying an adjustable gizmo on screen (the slider) 
it is easy to randomly click in it and get the slider setting and the 
Default zoom hopelessly out of synch. When that happens, adjusting the 
Default zoom changes the slider, but not to the default setting (unless 
one is lucky). Adjusting the slider has no effect on the Default zoom. 
It has taken me some time to figure out how all this fits together.

1. I think it would be helpful if an adjustment to the Default zoom 
resulted in the slider taking the same value. One could then 
additionally adjust the slider if one wanted to. (Logic: if I have a 
Default zoom of, say, 150% and the slider set to 168%, then presumably I 
am using 168% as my zoom level. It makes sense then to change the 
Default zoom to that level and ensure that the slider value is set to 
the same figure.)

2. I also think my confusion would have been less if the figure beside 
the slider was not the total zoom percentage as at present but the 
signed increment, e.g. +10% or -10%. That would have been clearer to me. 
(Logic: having *two* total percentage figures as at present -- slider 
and Default zoom -- left me confused as to what was what.)

3.  Perhaps the slider should respond *only* to the + and - buttons and 
not to random clicks within it? (Logic: as noted above, it is very easy 
to randomly click in an adjustable gizmo to see what happens. Result: 
confusion.)

Andrew

Andrew