Invoice management window.
Invoice view: generate new or show existing.
Billing party.
Requesting party.
Strating date.
Number.
Rate.
Ending date.
Users.
Client.
Projects.
Tasks.
Locations.
Departments.
Category.
Whether or not to include expenses.
Tax name column.
Add new tax.
Remove tax.
Whether or not to show invoice.
Preview mode (example).
Generate an invoice.
Reset invoice settings.
