It would be useful if it is possible to clear a custom date field again.
Currently, once you enter a date, you cannot delete it anymore. You are then forced to fill in the date field.
A practical example:
I use the date field to enter follow-up appointments. Once a lead has been closed or lost, I no longer want to enter a date, as there is no longer a follow-up appointment.
In this case, it would be useful to be able to clear the date field.