In addition to being able to individually show and hide numbers on various trunk elements you can use the number allocation tool to view and move numbers.
As shown in the screenshot to the right, you can view the numbers, select number that you would like to move and choose the element you would like these to be moved to.
Further information shown in the screenshot is detailed below.
Numbers to Move
When selected this dropdown menu will show you all of your numbers. You can select individual numbers, multiple numbers or by selecting a trunk, forward or voicemail you can select all of the numbers that are currently allocated to it. You can also use the search box to easily locate numbers.
New Trunk
This is the SIP trunk, forward or voicemail that you wish the selected numbers to be moved to.