Triggered email campaigns: Where to "store" info in Tess that is specific to venue/campus vs. specific to an event?

I would give my eyeteeth for a "one size fits all" document to walk me seamlessly through set-up of our first Triggered email campaigns. Short of that, I am grateful for any assistance more experienced Marketers can provide.

We are working on setting up pre-show reminders right now. 

We are a performing arts centers with multiple campuses and venues.

To keep things as streamlined as possible, we are hoping to set up a SINGLE list that pulls people with a show coming up in the next 48 hours. 

My example: One list, with 5 different performances pulling into that list.

Those performances are on separate campuses that may each have different traffic alerts/warnings related to city-wide construction projects.

For events that may each have different security procedures (some involve bag check, some involve wanding, some involve metal detectors).

For events that may also have specific pre and/or post-show entertainment in the lobby or bar.

I am not involved in building events in Tess; just in marketing them.

WHERE in Tessitura should I be asking my Ticket Set-up peers to start inputting these (special instructions) blocks of text that relate to traffic, security, pre/post-show events? 

So that I can create a Tess Output set that then pulls those blocks of text [for a specific campus, or specific event] dynamically into my Triggered Wordfly email template? 

Thanks for your help!

Christine