I think you might want to generate an active backup element.
The DELT is probably the best approach but just to give you another option.
What you also could do is duplicate the element and use Copy Element Data | DataMiner Docs to get all the data from the original element. And past it to the second one (also explained in the article). Then it's just a matter of setting up the element connections manually again and you would be good to go.
Note that this approach is a hard set. This means that the connector might not behave completely as you would expect it. eg you have login credentials, a login button and a login status, when you apply the data from one element to another it will copy over the credentials and the login status but the button would not be pressed. This means that the status might state "Connected" while the command hasn't actually been send. So you might want to restart the element afterwards to update those settings.
Either way it's a bit risky so best to test this out in a demo environment.