Cancelled Key Before Barline:

I see this enough in Classical music (and some modern Japanese publications) to consider requesting it. I prefer it over the common way of jumbling the cancelled key and new key together as it is cleaner and easier to read. Also, it should be noted that when changing from any key to a neutral key (C/am) that the naturals are placed after the barline, being that it is the new key.

Accidentals Spacing on Key Signatures:

I prefer (not sure how anyone else feels about this) a somewhat loose spacing of naturals, a relatively tight spacing of sharps and a slightly tighter spacing of flats. Would it be possible to space key-signature accidentals on a character basis rather than an all encompassing one. At least to the eye, I feel that sharps, flats, and naturals each take up different amounts of space. It would be ideal also to make these spacing options definable for accidentals on notes under the [Accidentals] Document Options.

Space Within Multi-character Accidentals:

The documentation for this reads:

This number sets the distance between accidentals that appear on the same line or space. In general, this parameter only occurs in nonstandard key signatures where there are so many sharps or flats that triple sharps and flats are introduced, or where triple sharps or flats appear on a note in the score; in each case, this measurement defines the distance between the double-sharp (or double-flat) symbol and the next sharp or flat to its left.

However, it appears to space ALL key-signature accidentals, and in standard keys.