Viewing the Main Menu

Here you can change your equipment/formation as well as view the status of your party members.

Container (Base)

View your weapons, armor, accessories, and items.

Basket (Gathering Area)

The items you gather in the field or obtain in battle can be viewed here. There is an upper limit to how much you can carry.
From here you can also use consumable items that are registered as Core Items.　

Skill Tree

View the Skill Tree and spend SP to learn new skills.

Quests

View quests (requests, bulletin board and party quests) and your reputation.

Equipment

You can equip weapons, armor, and accessories here.
You can only equip items from your container while in town and items in your basket while in gathering areas.

Items

View and equip your Gathering Tools and Adventure Tools.
You can only equip items from your container while in town and items in your basket while in gathering areas.

Core Items

View and equip your Core Items and manage Core Crystals.
You can only equip items from your container while in town and items in your basket while in gathering areas.

Formation/Status

You can change your party formation and view abilities and skills here.
You can only have up to 3 party members in battle. You can have one sub-member that can be switched in using the Shift Skill.

Guide

View information regarding items, effects, traits, monsters, and game systems.

Options

View and change various game settings, including volume, game difficulty, and other.