Custom name for LtpaToken

We have a need to implement SSO between domino servers in our intranet domain. We want to use the ltpa functionality for that but there is a problem. We already have a websphere environment that uses the ltpatoken for our intranet domain. I thought it would be easy because you can specify the name of the token in the SSO configuration document. But no, the token in the browser is always called LtpaToken. This could cause conflicts with the websphere applications so we don’t want this. I found this article:http://www-01.ibm.com/support/docview.wss?rs=463&uid=swg21116538

where it explains this behaviour and states that Lotus software Quality Engineering has requested a software enhancement to allow a different token name. (like is possible for sametime, for example ST_TOKEN_TYPE=MyLtpaToken)

Has there been some development in this area in 8.5 ? I bleieve the linked document is from the 6.5 days. Is there now a notes.ini variable that we can use like is possible in Sametime ?