In update 1.22.1 Ink Calendar will gain the ability to UNDO with the undo button and by pressing ctrl + z. There is not much more to say on this, most programs have this ability and now Ink Calendar does too!
Also you can highlight working hours on the Week and Day view. These can be turned off or adjusted to reflect your specific working hours. Let me know what you think!
I’ve been investegating an issues with quick drags freezing Ink Calendar, but the bug is hard to pin down. If you have experienced this please email support (at) inkcalendar (dot) com.