In LabVIEW, you would use a DAQmx Timing property node to set:
Sample Clock.Timebase Divisor
CAUTION! New LabVIEW adopters -- it's too late for me, but you *can* save yourself. The new subscription policy for LabVIEW puts NI's hand in your wallet for the rest of your working life. Are you sure you're *that* dedicated to LabVIEW?
(Summary of my reasons in this post, part of a voluminous thread of mostly complaints starting here).