QuickCursor would be all the more useful if it could support more applications. The existing accessibility-based mechanism is effective for many applications, but, as noted, not some critical ones like Mail.app. Alternate methods (like simply automating copy-paste via Apple Events) would be a great fallback for some applications. An internal greylist of essential apps for which fallbacks are required would streamline this process without user intervention.
QuickCursor would be all the more useful if it could support more applications. The existing accessibility-based mechanism is effective for many applications, but, as noted, not some critical ones like Mail.app. Alternate methods (like simply automating copy-paste via Apple Events) would be a great fallback for some applications. An internal greylist of essential apps for which fallbacks are required would streamline this process without user intervention.