This depends on whether you have chosen foreign trade or gypsy, you can only select one of the two. The upper part is unlocked with the gypsy, the part just below those with foreign trade. If you want a market place (rock and wool) in the contractors office build five offices and put them right next to each other and that will unlock that blueprint. If you want the gypsie place (wood and crystal havesting) build five orcina of time and you will unlock that set of blueprints.
In the game there are two belts. When you have one you will be able to carry up to 17 units, if you have both belts you will be able to carry 25 units. One is hidden under a resource to the east, the other is from a quest.
Hidden in the resorce fields to the east of town are four and there is another one north-northwest (just clear off ALL the limited resource fields). Extra love can be received by completing quests for the selfish mayor/king.
Hidden under resources to the east are the upgrades for rocks, wood and wool. To be able to harvest wool you will need the regular shears as well as the upgraded ones. The upgrade for crystal is a quest reward.