C++Change color all cubes first person blueprint

I have started a new project using first person template, What I want to do is to use the following to change all cube colors in the scene:
// Fill out your copyright notice in the Description page of Project Settings.

#include "ColoredCube.h"
#include "Materials/MaterialInstanceDynamic.h"
#include "Components/StaticMeshComponent.h"
#include "Materials/MaterialInterface.h"

// Sets default values
 	// Set this actor to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
	PrimaryActorTick.bCanEverTick = true;

// Called when the game starts or when spawned
void AColoredCube::BeginPlay()

	auto Cube = FindComponentByClass<UStaticMeshComponent>();
	auto Material = Cube->GetMaterial(0);

	DynamicMaterial = UMaterialInstanceDynamic::Create(Material, NULL);
	Cube->SetMaterial(0, DynamicMaterial);

// Called every frame
void AColoredCube::Tick(float DeltaTime)

	float blend = 0.5f + FMath::Cos(GetWorld()->TimeSeconds)/2;
	//float blend = 0.7f;
	DynamicMaterial->SetScalarParameterValue(TEXT("Blend"), blend);

as you can see I am using auto Cube = FindComponentByClass(); to get the Cube that I have added to a local blueprint that I created earlier, but I wasnt to fine the rest of the cubes that template automatically imported and change their color too. The cubes have type staticmeshactor. Blend is a scalarparameter that I add to control the color in material editor

//Thank you

Hello! You can simply do smth like material on picture… This is done to avoid calling Name-based method inside Tick method