AdvancedGUI — Item Trade Menus
Create fully custom in-game trade/shop GUIs with a simple drag-and-drop admin editor — no config files required.

Overview
AdvancedGUI lets you build as many trade menus as you want directly in-game. Open the admin editor, drag items into slots, set costs and rewards with a middle-click, and your shop is live instantly. Players see clean GUIs with cost info and click hints built right into the item lore — no external plugins needed.

Features

• Unlimited menus — create as many trade menus as you need, each saved as a .yml file
• In-game drag-and-drop editor — place items freely, no command syntax or YAML editing
• Per-slot trade editor — middle-click any item in admin mode to set its cost and reward
• Bulk purchasing — players can Shift Right-Click to buy as many trades as their inventory allows
• Free items support — leave the cost empty to give items away for free
• Lore hints for players — every shop item automatically shows cost, reward, and click instructions
• Blank GUI title — the inventory title is empty for a clean, professional look
• Console & NPC support — open any menu for any player via command (great for Citizens/MythicMobs NPCs)
• Persistent storage — all menus survive restarts, saved to plugins/AdvancedGUI/menus/

Commands

Command Description
/gui <menu> Open a menu for yourself
/gui <menu> <player> Open a menu for another player
/admgui <menu> Open the admin editor for a menu
/admgui <menu> create Create a new menu
/admgui <menu> delete Delete a menu
Permissions

Permission Description Default
guitrade.open Use /gui command op
guitrade.admin Use /admgui command op
How to Use
Creating a menu:

1. Run /admgui myshop create
2. The admin editor opens — drag any items into the slots you want
3. Middle-click an item to open the trade editor for that slot
4. Place cost items on the left side and the reward on the right side
5. Click the green SAVE wool to confirm
6. Close the inventory — the menu is saved automatically

Opening for players:

• Run /gui myshop to open it for yourself
• Run /gui myshop PlayerName from console or via an NPC plugin

Buying:

• Right-Click an item to purchase once
• Shift Right-Click to buy as many times as possible in one click

✦Requirements

• Spigot / Paper 1.16.x – 1.20.x
• Java 8+

Notes

• Each menu is stored at plugins/AdvancedGUI/menus/<name>.yml
• The display item (what players see) is separate from the reward item (what they receive) — useful for showing a custom named/enchanted display item while giving a plain item
• Up to 9 cost items per trade slot are supported