customized zoom setting

the drop-down menu for the zoom setting has value from 25% all the way through 1600% (Boy, that's big!), as well as "whole page," etc. However, given my usual staff scaling/screen size/bad eyesight, I often find the most comfortable setting is about 120% or 125%, at least during the note-entry phase. Is there any way to customize that menus so that's one of the regular options?

I'm getting comfortabel enough with the program that I'm to the point of thinking about customizing palettes, shortcuts, etc.

--WF