How Steve Martin voted compared to someone who believes that the federal government should increase Aboriginal and Torres Strait Islander land rights by, for example, increasing their legal recognition and protection

Division Steve Martin Supporters vote

21st Mar 2018, 3:58 PM – Senate Motions - Queensland: Native Title - Adani Indigenous Land Use Agreement

absent Yes

How "never voted on" is worked out

Normally a person's votes count towards a score which is used to work out a simple phrase to summarise their position on a policy. However in this case Steve Martin was absent during all divisions for this policy. So, it's impossible to say anything concrete other than that they have "never voted" on this policy.