Request: Update form on responce

Ok, so half my tickets are sales, and they need tracking (pending quote, quoted, accepted, invoiced, ordered, installed)

Now i have a custom form for this and a list and that all works nicely.
I also now have a custom column on my tickets screen (thank you: https://github.com/osTicket/osTicket/pull/2577) that shows the status.

however, agents need to update this often, almost every time they make a responce or internal note,

how would i get the custom form to display on the post response/internal note screens, or how could i make the value, always editable at the top of the screen in the ticket details?

thanks in advanced