Manual ordering: how to reset it back to zero

[Anonymous]

Is there a way to rest to 0 or just edit the manual ordering field in the task, so I can have a fresh star in for manual ordering every time I need to? I could't find it. Even editing the task, that field is not there.
I normally sort task for criteria as due date and priority, but, sometimes I also order some task manually, just to put them on top. The issue I'm experiencing is that the manual order is stored in the field "Manual Ordering", so, every time I activate the manually sort option, each task has an old order number, and if enough task are in that situation, the result is quite chaotic. I just want to get the task order by due date and priority, and then move some particular task to the top manually.

[Anonymous]

Sorry that's currently the behaviour.
You cannot "force reset" the manual ordering, sorry.