Invoices changed

[Tut]

@Thapelo_Nteta

that solved one problem and created another

This is exactly as described in the Guide:

Change a form title

A title is the name of a particular transaction form in Manager. Titles appear near the top of forms in default theme when a transaction or record is viewed, but can be placed elsewhere. Transactions that typically have external recipients offer options for custom titles when they are created. Modification of titles for those forms is common, sometimes even being required by law. These can occur in three ways with built-in features: Sales and purchase quotes, sales invoices, delivery notes, r…