[Bill Nichols]

Originally Posted by MaHuJa

Alternate solution, for a random time, not just a randomly selected time:

In the upper right corner of the map (when applicable; this will usually hide it beneath the 3d window even with show truth) create a ship of some kind. Or even a sub. Give it a transit tactic, in either of directions 0, 90, 180, 270. Give it an attached goal, destination type, and set it so that the ship enters it along its course. Use the random starting box to have its random placement somewhere along that course.

Set the distances between the beginning/end of randomStartBox and goal depending on the speed of the ship and the times you want.

I've done this before (in Sub Command), using whales as the trigger.