Apologies this thread was closed, I’ve now reopened it.
I have a feeling that this is not an easy fix but I will discuss with our developers to see what can be done. It’s regrettably not going to be something that we can look at in the near term.
EDIT:
Perhaps not the ideal solution but it may help for now…
When using the bulk invoice entry form you can input the gross amounts on the far right hand column and it will work back to the NET.
You can create just one invoice using this method then edit further if needed.