If you are using the tab key to move through controls in Anytune and some controls are skipped you can try changing your tabbing behaviour.
Tabbing behaviour can be adjusted in:
Mac OS System Preferences > Keyboard > Shortcuts : Full Keyboard Access
Setting it to "All Controls" will allow you to tab through more controls.
It does have side affects, which can be annoying. The space bar won't Play/Pause when you have a control selected.
You can use Control-Tab to move out of a text box.
You can toggle between these mode Ctrl-Fn-F7 but it can still be painful.
The focus behaviour on MacOS is sometimes confusing.