I suggest setting up a Job Board (JB) in the Market Avenue in each city.

1. The Job Board will allow to post one "Quickie Job" per retainer in according to dipatch market.

2. Its similar to the GC "Supply and Provisioning Mission" but instead of getting Exp. points and GC Seals; a player sets a reward for fulfilling the request (Items/Gil).

3. It would be divided similar to GC S&P mission, but including Crystals and materials that are dropped by mobs.

To regulate the system, a player will post a Quickie job request per retainer for a small fee (100 Gil), and it will be valid for certain time before it expires; to avoid stacking up of the JB with old posts.

I suggest each JB to be separated, to allow players to explore all three JBs, making retainer dispatch to each city a unique thing. Job posts will hold retainers' names.

This will be a substitute for "about auto-buy option" for MB, since the buyer will set their desired payment instead of seller.