You could use a part of the system name if all effected systems have a part of the name in common like ICT or Room1 or something like it.

This example might help you with that.
 Code:

;Read a part of the system name start at the first character and read three characters.
If SubStr(@WKSTA, 1, 3) = "ICT"
	;do your magic
Else
	;do other magic or do nothing.
EndIf


You can also add all affected systems to an array, check the array and do your magic on the outcome.
 Code:
$computers = "System1","System","System3"

If AScan($computers, @WKSTA)
	;Do your magic here.
Else
	;Do other magic or do nothing.
EndIf
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