In the TicketTrackingLink exercise, we created a macro that outputs a link to a ticket in the company's ticket-tracking system and placed it in the OnboardingProcess tiddler. Create a template based on this macro, called TicketNumberLink, which displays the link to a project's ticket when it's used as a template for any tiddler that has the ticketnum field populated. Transclude this template in the text of the OnboardingProcess project to show its ticket number.

Tip: It may be helpful to get everything working within the OnboardingProcess tiddler first, then excise the relevant parts into a separate template tiddler – this way, if something doesn't work, you have a better idea of what part isn't right.