CIS for subcontractors on invoices

Feature requested
[What feature would you like to see in QuickFile?] A feature to allocate a line for CIS on the invoice

Typical use case
[How would this feature be used?] Automated to make quickfile compatible with other systems such as Xero etc

How I would expect it to work
[To understand how this may work for users, provide some details of how you think it would work. This is completely optional, but it helps our team understand what you are looking for.]

Instead of using a workaround by manually creating a CIS vertual bank account, there would be a line on the invoice which shows the CIS amount for the labour on this invoice taken from labour/time not materials. This CIS is automatically collated for me so I know how much to claim and is automated for my contractors so they know how much to pay and is compatible with their system. Currently, my contractor informs me, he either pays the full amount on the invoice or his xero tells him the invoice is not paid in full -on his system.