Can we have it as project to invoice please?

The more I play the more I think it definately should be project to invoice based rather than the current invoice to project way round. i.e.
It's best to create an invoice without having to specify a project and then adding projects to that invoice so you can have as many projects on the one invoice as you like. I know you can at present create invoices without projects but this messes up when you want to add several projects to it because the projects expect to be associated with invoices otherwise they look as if they haven't been invoiced, plus also I'd like to add PO numbers to the invoices rather than the projects so an invoice can cover several projects under one PO number.

Im currently wrestling with several projects for the one client and so far they all have their own time tracked tasks. A couple of other jobs are fixed costs so I've had to create a blank invoice and add them projects to it but in order for me to invoice for these timed ones Im going to have to either A. create separate invoices for each or B create a blank and add them manually then delete their unbilled time....which is awkward and odd if you ask me.

Adding projects to the invoice surely makes better sense?...like so....get rid of the project select from the create invoice....



...and add it to the invoice item list!



It also needs breadcrumbs....if you're looking at a clients project and want to get back to their list, you have to click all the way back to contacts to click on them again to get to the list....wasting some clicks there!

:)