As far as I have seen in the documentation (see: https://help.wrike.com/hc/en-us/articles/1500005128261#UUID-f42ea63a-b46a-2f67-0ba3-639342a6136b) , it is not possible to define the effort day by day?
So the following use case is not covered by the effort/workload view:
One employee should work for a specific task in the next week only on Monday/Tuesday and Thursday/Friday (e.g., because of a customer requirement or an important other project on Wednesday). So I'll have a task from Monday to Friday with an effort of 32 hours. I want to split it into 8/8/0/8/8. However, it seems to be impossible to create such a common scenario. Wrike should offer a fourth selection (effort type) to define the hours day by day (or to unselect specific dates).
Bonus: If you are in the Workload view, double-clicking the daily effort for a task should make the field editable to change the effort on the selected day.