We have added new munu and view for timesheet entry invoicing.
You can select lines which are invoiceable from here and directly click to create invoice.
Enhanced form view of timesheet entry to enter proper details.
Configuration on project form view to make timesheet entry default invoiceable and set proper product.
Invoice timesheet lines wizard with very useful options. With proper option selection you can create invoice per client or project.
Created invoice from timesheet with proper details.
Other configurations in Odoo
No extra technical knowledge or configurations requireired. Just install the module and enjoy functionality.