How do I authorize ArcGIS license in MIKE URBAN as single use?

Question
How to authorize ArcGIS (desktop) single use license for MIKE URBAN?

Answer
Authorizing a single use license for MIKE URBAN is done in the ‘DHI License Manager’. You have to go through the following 4 Steps 

#01 - Import/activate the MIKE license (Fig. 1)  
#02 - Save the .eslf file you received from DHI on your local drive 
#03 - Choose MIKE URBAN 2020 from left-side menu, then click on ‘Authorize ArcGIS…’ button (see Fig 1) 

Fig.1 – Click on Authorize ArcGIS button  

Step 4 - Follow the screen to authorize the ArcGIS License (Fig. 2 - Fig. 4)

 
Fig. 2 - 

Fig. 3

 
Fig. 4