"Now with this script, I want it where players not in the group or players in the group <=3 can't see the prompt on the door, even when a player in the group with >=4 opens the door."

-- server script 
local Players = game:GetService("Players")
local door = script.Parent
local prompt = door.Base.EToOpen
local group = 32729209
local open = false
local TweenService = game:GetService("TweenService")

local openTweenInfo = TweenInfo.new(1, Enum.EasingStyle.Sine, Enum.EasingDirection.Out)
local openTween = TweenService:Create(door, openTweenInfo, {Rotation = 90})

local closeTweenInfo = TweenInfo.new(1, Enum.EasingStyle.Sine, Enum.EasingDirection.Out)
local closeTween = TweenService:Create(door, closeTweenInfo, {Rotation = 0})

prompt.ActionText = "Open"

local function toggleDoor(player)
    local rank = player:GetRankInGroup(group)
    if rank >= 4 then
        if open then
            closeTween:Play()
            prompt.ActionText = "Open"
            open = false
        else
            openTween:Play()
            prompt.ActionText = "Close"
            open = true
        end
    end
end

prompt.Triggered:Connect(toggleDoor)

local function onPlayerAdded(player)
    local rank = player:GetRankInGroup(group)
    if rank < 4 or not player:IsInGroup(group) then
        prompt.Enabled = false
    else
        prompt.Enabled = true
    end
end

local function onPlayerRemoving(player)
    local rank = player:GetRankInGroup(group)
    if rank < 4 or not player:IsInGroup(group) then
        prompt.Enabled = false
    end
end

Players.PlayerAdded:Connect(onPlayerAdded)
Players.PlayerRemoving:Connect(onPlayerRemoving)

-- Add a ProximityPromptService to manage the visibility of the prompt for each player
local ProximityPromptService = game:GetService("ProximityPromptService")

-- Override the default behavior for showing the prompt
ProximityPromptService.PromptShown:Connect(function(prompt, player)
    local rank = player:GetRankInGroup(group)
    if rank < 4 or not player:IsInGroup(group) then
        prompt.Enabled = false
    else
        prompt.Enabled = true
    end
end)