Time block should be removed once task is completed
I'm not very well organised (that's why I use Weekplan :)) ... so sometimes I end up completing a task which I had time blocked for later that day.
But the time block stays visible, which makes adding other tasks / events there messy.
Seems to me that, once a task / event is completed, its block should either be removed or greyed out substantially.
You should probably move the task to represent where it got done