Thanks for taking the time to post this.
Regarding the first issue: I think I’m not understanding this completely, as once you click on the item in the calendar view, the modal/sidebar pops up with all the attributes belonging to that specific item.
The second suggestion: Do you mean for today’s date to be the first item/cell? Not, for instance, the 1st of the month? If that’s the case, that could be a bit hard, because of the month order and UX/UI.
Right now, you can see today’s date marked/highlighted with the green box. Do you think that should be changed?