The invoicing module does not allow entry of analysis codes nor shows who created the invoice. This is available as it is stored on the corresponding sales order entry created & hidden from users so can this be exposed to allow both amendment of analysis codes & also to expose these to the invoicing desktop list
Within Enter New Invoice if you enter the line of detail and then select Edit an Analysis Code button appears on the Edit Invoice Item form. On the Delivery & Invoicing tab you can see the details on the Invoice taken by. It would not be possible to have to analysis codes displayed on the Invoicing desktop list as these apply to the individual lines.