How do I send a message with the "URL Paho MqttClient" extension with the reach flag?

[miheeei]

Good afternoon, please tell me how to organize sending messages with the Retain flag. My block is nested

@Ulrich_Bien

[Taifun]

Please elaborate
What exactly is that reach or retain flag you are talking about?

Taifun

[Ulrich_Bien]

Use method PublishEx