Thanks for using our Answers Forum. I understand that you have a lot of Slingboxes, that's great! I can see where trying to find one specific Slingbox could be confusing and difficult.
At this time, we no longer support the desktop Slingplayer, we now recommend that our customers go to Slingbox.com and click on Watch. I do have an article, Using the Slingbox Directory that explains the directory and how to make it work for you.
There is no way at this time to create a specific link for each individual Slingbox, however, we are always working to improve the Slingbox and the Slingplayer so it could happen in the future.
Hope this helps.
Sling Moderation Team.