on rightclick on entity:

    if entity's name is "상점":

        open chest with 1 rows named "상점" to player

        set slot 1 of current inventory of player to Diamond pickaxe named "도구상점"

        set slot 2 of current inventory of player to End crystal named "pvp상점"

        set slot 3 of current inventory of player to Barrier named "후원상점"

        set slot 4 of current inventory of player to Redstone named "회로상점"

        set slot 5 of current inventory of player to Diamond named "광물상점"

        set slot 6 of current inventory of player to Barrier named "전리품상점"

        set slot 7 of current inventory of player to Wheat named "농장상점"

on inventory click:

    if name of event-inventory is "도구상점":

        if clicked raw slot is 1:

            cancel event

여기까지 했는데 다음꺼를 모르겠습니다 사실 이게 맞는지도 모릅니다.. 제가 하고싶은거는 GUI를 열고 도구상점이라는 아이템을 클릭하면 다음 창이 열리게 하고싶습니다 도와주세요ㅜㅜ