SharePoint 2016 : Log as an other user, add the custom action

Please follow the following step in order to activate the option 'Log as an other user'.

Open the file "welcome.ascx" under the path "C:\Program Files\Common Files\microsoft shared\Web Server Extensions\16\TEMPLATE\CONTROLTEMPLATES"

Add the following lines after the element « ID_RequestAccess » :

<SharePoint:MenuItemTemplate runat="server" ID="ID_LoginAsDifferentUser"
Text="<%$Resources:wss,personalactions_loginasdifferentuser%>"
 Description="<%$Resources:wss,personalactions_loginasdifferentuserdescription%>"
 MenuGroupId="100"
 Sequence="100"
 UseShortId="true"
 />


And see the result:

Before:

After: