There is a very useful Layer grouping in the Quarter View, but unfortunately, this option is not available in the Week View.
As a user, I want to quickly see the tasks of each layer during a week (the current week, next week, etc). Some of the tasks may take 1 day to be completed, and others may take even less. So, currently, when I see them in the Week view, everything is mixed up.
Currently, it is possible to see those tasks grouped by layer in the Quarter View, but the scale doesn't help and we always need to move the mouse over each task to read the title of the tasks and check the due date. This overview is not useful for daily tasks.
Current Week View
Current Quarter View
My suggestion is to add this "layer grouping" option/view to the Week calendar.
What do you think?