This feature existed in the original RCT1/2 games but was not present in
the latest development commit.
The original shortcut for this key was '7', placing it between the
"Invisible people toggle" (6) shortcut and the "Height marks on land
toggle" (8). This commit preserves as much as possible, using
placeholder comments that signify the relevant values which this
feature actually uses where this is not possible.
This increases the height for each item in the keyboard shortcuts window from 10px to 12px.
While this may not seem like much, it ensures the text no longer overlaps for Japanese and Korean.
At also has the added benefit of making the window look a bit nicer for Western languages.