Hello Rien van Ham,
I believe the progress bar is correct, but the last step (3/3) finishes immediately. It makes difference when you sort even larger files.
I will think about your search feature requests in the future. You might want to use macros to define several searches, and you can just run those macros. You can also define “markers” on the Marker toolbar, and pressing a marker button will search the string.
Thanks,