The Mysteries of the Tent Screen

I'm looking at map $003 in Zone Doctor, and it looks like the Tent function (Nighty Night) is at CA/015E... at least for the world map call of it. The field map call of it seems to be CA/00EA, or possibly CA/00EB. For the field version, there's a restore from fade that might be related to closing the menu, I'm not sure. The event trails the end of another event (defeated Doom Gaze), much like the standard Nighty Night is followed by the first approach to Kefka's Tower. Both end with a map load terminus which makes them look like they're combined events, even though they're not.

The event pointer of the other trigger spot is going to CA/5ADE.
The floating continent breakaway itself is at CA/5BE1.

Code:

CA5BE1: {D2-8B-25-08-07-40}   Load map $018B (Floating Continent Breakaway 1), position (8, 7), mode $40

My guess is they handled it as an event square placement because of how boarding the airship works. Had the event been called immediately after the Thamasa scene, the player wouldn't have been able to wander and save before boarding the airship. The airship itself puts you in different maps based on the event bits in play when boarding, so the developers must have plopped the Floating Continent trigger in map $003 since there wasn't much else going on there and the map wouldn't even be seen.

If you absolutely need to harvest that event square, you might be able to just trigger $CA5ADE as a guaranteed branch or a subroutine, following the scene where the Returners leave Thamasa. It might have some consequences, though, since right after the event the player is placed on the deck of the airship... I'm not sure. The player would also lose the opportunity to save before the cutscene, leaving their nearest save in Esper Mountain behind a wall of events... a big ouch if they accidentally try to fight the IAF and fail.

EDIT: It occurred to me after I posted that you weren't referencing the load of the floating continent breakaway, but the load of map $003. Yeah, it's probably in the $EE bank with the rest of the world map stuff. The Tent might load it in $C3, or maybe it just sets an event bit that gets referenced in $EE.