Sadly, no. I asked this question over a year ago and here was tech support's response:
https://www-secure.symantec.com/connect/forums/20-computer-display-limit-spc
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That functionality was removed in SEP 12. You can only get that in SEP 11 at the moment. I would submit this to the "Ideas" section of the forum. Maybe the developers can get this feature included in a future build.
https://www-secure.symantec.com/connect/ideas
Best,
Thomas
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It's just another example of v12 being a crippled version of v11.