Change "Filter" to "Search" in Preferences > Shortcuts
If you open Preferences > Shortcuts, you'll notice that the empty "Search" box has the word "Filter" in it. This should be changed to "Search", which is more recognisable (for example, the same box in "Instruments" uses the word "Search").
One other thing: The shortcuts in "Preferences" for Tenuto (Ctrl+Alt+N) and Marcato (Ctrl+Alt+O) are not those listed in the manual (Shift+N and Shift+O respectively). And the new shortcut for sforzato (Shift V) hasn't been set either.