By default, DAQmx terminal constants/controls only show a subset of what is really available. To see everything, you have to right-click the terminal and select "I/O Name Filtering", then check "Include Advanced Terminals":
I guess this is intended to prevent new users from being overwhelmed. However, what is really does is create a hurdle that prevents them from configuring their device in a more "advanced" manner since they have no idea that the name filtering box exists.
I am putting "advanced" in quotes because I find the distinction very much arbitrary.
As a more experienced DAQmx user, I change the I/O name filtering literally every time I put down a terminal without thinking about it (who can keep track of which subset of DAQmx applications are considered "advanced"). The worst part about this is trying to explain how to do something to newer users and having to tell them to change the I/O name filtering every single time (or if you don't, you'll almost certainly get a response back like this).
Why not make the so-called "advanced" terminals show in the drop-down list by default?