Mikrotik hotspot variables in html

I know that some of hotspot variables such are $username can be access in html .

Is there access to the comment in the user information?

the reason I want access to the comment because I put the real name of the users in the comment so in the status page I want to add Welecome “User real name” instead of Welecome “User ID”?

What are the other variables that can be accessed in html?

No.

http://www.mikrotik.com/testdocs/ros/2.9/ip/hotspot_content.php#7.41.15.1
Thats the closest anchor (and also good to know), scroll down a little further for a list of available variables.