Nudge settings default vs file set.

Don't think so.

To make it easier to check and change the nudge setting, make sure you have "Nudge distance" visible on a toolbar.
I believe it should be in Property Bar by default when the Pick tool is active with nothing is selected, also in X5.

If you want it to be visible at all time, you can drag the "Nudge distance" item from Property Bar to for example Standard toolbar while holding the Ctrl and Alt keys (to make a copy).

Assign alt+n shortcut to the nudge settings.Put this macro/code under "ThisMacroStorage" Only tested to work with X7 but should also work with X5.

MyNudge.gms