Option to change Host Pass Timer from on Link Generation to on Link Open

We are using the host pass feature to create an on demand virtual machine "checkout program" for our sales staff in conjunction with Microsoft Bookings.  We have tested the created host pass links and the timer starts when they are created, making issuing the host passes out a manual process at the requested time slot.  If the link timer started when the recipient clicked on the link to begin the session, we could schedule emails with the link and automate the process a little more.