Hi,
I'd like to raise issue with logbook. Once filter for "date from" is applied, the next one does not come effective. For example if i set "date from" 28.3.2014 and select summary and after that i change "date from" to 1.1.2014, application refuses to change the "date from" value. Workaround is to close the logbook and re-enter it once again than enter new "date from" date. This post is just to improve your application - i love it anyway because it is really nice piece of work.