I don't believe you can exclude. You would need to add each pc name separated by a comma and just exclude the one(s) you don't want.
I've never tried entering a range so I'm unsure.
You can use the wildcard character question mark (?), which matches any one character, and the asterisk (*), which matches any string of characters. So you can try playing with this.
Perhaps like 10.10.*.* or 10.10.10.0/24
But again, would need to test.