Longer Invite Link Duration

TL;DR - Can the invite link duration be increased to something like 24 hours?

My friends and I were hoping to use fables as a way to play a sort of play-by-post game as these days we all are very busy and/or have wildly different schedules.

Inviting my friends to the campaign has been somewhat difficult as the invite link only lasts 30 minutes, essentially meaning me (as the holder of the paying account) has to schedule a time that both people are available so I can give them the invite link and have them join within the short 30 minute time frame.

Long story short, can the invite link length be lengthened to something longer (24 h? 12 h? 2 days?)