Feedback is always useful.
1: Printing is working, I checked. You have to have a view selected before it prints though, so go to one of the views and the print box will highlight. I just tried it, it is working fine.
2: Good point, The originals did have the file image copy and paste, but it got dropped along the way, I will reimpliment it.
3: The query language would be a bit complicated, as I would need to know exactly what you want to see and put that functionality in, unless you wanted raw data, which you could get from the export, in which case I could just put it in.
You can get the view you want at the moment, if you want. If you expand everything and control click on all the days that are monday, you will get a view of just those days. Not ideal I know, but it would show you what you want.
Markers on the other hand is something that Me and Jay have been talking about, and are currently underway - a way of importing arbitrary data and displaying it at the same time - both as discrete events and continuous related events.
That and notes are the things that I want to put in from now, and some of it will definitely start to appear in the next versions.
I suppose it may be worth having markers on the side, or maybe some kind of filtering of days so you can see them?