code: https://hastebin.com/ebacoficew.sql

(in lore you can use '' || '' for other line like: with lore "&7Your Lore ||&aAnother line"
Example

 

Do not use SkQuery for GUIs. Use TuSKe for guis instead.

Code (Skript):

1. command /gui:
2.     trigger:
3.         create a gui with virtual chest with %number% rows named "%string%":
4.             make gui slot %string% with %itemstack%:
5.                 set {_action} to "%gui-click-action%"
6.                 {_action} is "left mouse button":
7.                     your code here
8.                 {_action} is "right mouse button":
9.                     your code here
10.         open last gui to player