Deleting a Transaction Item In Progress

Hello Community - Is there any way to Delete a Transaction Item which is In Progress?

I find it very tedious having to wait 24 hour before deleting it. Especially, if the Queue has Unique Reference. Furthermore, a small feature such as being able to remove (not just delete) a Transaction Items completely from a Queue would be awesome!
Cheers.

Also - having the possibility to merge queues would be beneficial.