Good evening all,First and foremost, fantastic product you have built. We are currently utilising osTicket to manage our helpdesk and would like to use it to manage our sales process too and as a point of reference for billing as well.Let me explain a little bit further what I mean.Ticket is created -> notes are added -> job status is changed to "To be invoiced" (for example) instead of closed. The ticket then disappears from open tickets list for support users and appears in open tickets for billing users. Billing users then close it once completed.Also, in the tickets tab at the top (for billing users), instead of "Open", "My Tickets", "Overdue" etcHave "Open Support", "Open Billing", "My Tickets", "Overdue" etc whilst leaving support users unchangedI would like to limit Support staff to seeing only support tickets, but billing users can see both support and billing.My reasoning behind this, billing users are admin/reception who take messages and log tickets for technical staff. But technical staff do not need to see tickets once they are finished and to be billed.Further to this, sales users can create a "Sales Ticket" which they can communication with prospective client via email and then close the ticket once the sale is complete Completely segregated from billing and support tickets.I realise I have asked a lot in this post and your time is appreciated. Thank you