No, It's not possible. Because SXP's get called during the surface color
calculation stage, no infomation about the current object, such as its name, is
available. The best that could be done is to create "Data Set" names that
get defined by the user during setup, then the SXP could dynamically track
state via the data set name. However, this would create a rather unwieldy and
slow SXP.
-Grant Blaha [ADESK]