The username is available on the page using the Javascript variable
window.user

You can freely edit the index_application.html page to display its value.
For example:
document.getElementById("apps").innerHTML += "<h2>" + window.user + "</h2>";

Please be mindful that this change will be overridden after updating TSplus Remote Access.

Example


add this line : 
document.getElementById("ringraziamento").innerHTML += " " + window.user;

in the file C:\Program Files (x86)\TSplus\Clients\www\software\common_applications.js into the function displayAssignedApps  here :

Please make sure to have a proper <span id="ringrazamiento"> or <span id="ringrazamiento"> in the C:\Program Files (x86)\TSplus\Clients\www\index_applications.html file and remove  this :

<script>
$(document).ready(function() {
document.getElementById("ringraziamento").innerHTML += " " + window.user;
});
</script>

And, it should display the login properly.