Is there a way to find players who have entered the mutator zone?

Development Programming & Scripting
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1

I’m trying to create a function that operates when a specific player enters the mutator zone. Is there a way to check which players have entered?

2 

using { /Fortnite.com/Devices }
using { /Verse.org/Simulation }
using { /Verse.org/Verse }
using { /UnrealEngine.com/Temporary/Diagnostics }
using { /Fortnite.com/Characters }
using { /UnrealEngine.com/Temporary/UI }
using { /Fortnite.com/UI }
using { /UnrealEngine.com/Temporary/SpatialMath }


# See https://dev.epicgames.com/documentation/en-us/uefn/create-your-own-device-in-verse for how to create a verse device.

# A Verse-authored creative device that can be placed in a level
save_check_device<public> := class(creative_device):
    @editable
    CheckPointZone : mutator_zone_device = mutator_zone_device{}

    PlayerNameToMessage<localizes>(Agent:agent) : message = "Trigger Player Name : {Agent}"
    var MaybeMyUIPerPlayer : [player]?canvas = map{}

    OnBegin<override>()<suspends> : void =
        CheckPointZone.AgentEntersEvent.Subscribe(PlayerEnteredWith)
        
    PlayerEnteredWith(InPlayer : agent) : void =
        Print("1")
        CurrentPlayerName : message = PlayerNameToMessage(InPlayer)
        if (ItPlayer := player[InPlayer], PlayerUI := GetPlayerUI[ItPlayer]):
            if (MyUI := MaybeMyUIPerPlayer[InPlayer]?):
                PlayerUI.RemoveWidget(MyUI)
                if (set MaybeMyUIPerPlayer[ItPlayer] = false) {}
            else:
                NewUI := CreateMyUI(CurrentPlayerName)
                PlayerUI.AddWidget(NewUI)
                if (set MaybeMyUIPerPlayer[ItPlayer] = option{NewUI}) {}

    CreateMyUI(UIText : message) : canvas =
        MyCanvas : canvas = canvas:
            Slots := array:
                canvas_slot:
                    Anchors := anchors{Minimum := vector2{X := 0.5, Y := 0.5}, Maximum := vector2{X := 0.5, Y := 0.5}}
                    Offsets := margin{Top := 0.0, Left := 0.0, Right := 0.0, Bottom := 0.0}
                    Alignment := vector2{X := 0.5, Y := 0.5}
                    SizeToContent := true
                    Widget := button_loud{DefaultText := UIText}

        return MyCanvas

Referring to the tutorial document, I created a UI that displays the name of the player entering the mutator zone.

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