Version info:
1.6.1 (2013. Apr 7.) Error in new scene fixed, callback event error fixed, zoom to selected keyframes works with biped objects.
1.6 (2013. Mar 19.) Available to Zoom to selected keyframes.
1.5 (2013. Feb 20.) Bug fixes. Preset are stored as frames instead of precentage. Available to set the zoomed range exactly with the inner spinners. Tooltips for preset buttons.
1.4 (2012. Aug 3.) Bug fixes.
1.3 (2012. Aug 2.) Bug fixes.
1.2 (2012. Aug 1.) Available to save the actual slider position to presets, and save them to scene (see manual).
1.1 (2012. Jul 18.) Small bug fixes, double click again to restore last zoomed position, Zoom without mouse wheel (see manual).
1.0 (2012. Jul 14.) First release.