What the character does when the player is on hiatus is up to the player to decide and coordinate. What players commonly do is to canon update or stick their characters in missions during hiatuses, while others arrange for handwaved interactions with their chosen CR before or after their hiatuses.

The mods cannot, in fact, dictate the character's activities while the player is gone, though we can help with settings and plots when requested of us. However, we'll see to adding a section dealing with character activity in the hiatus page in the future to augment this issue.