From now on you can copy time entries in the timetable.
Click on the time entry you want to copy and drag it with the mouse to the desired copy position. Once you have reached this position, press the CTRL key. This way you copy the time entry instead of moving it. As soon as you release both keys, the copied entry appears at the desired position.
If you want to move the time entry instead of copying it, just release the CTRL key and move the tile as usual.