From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
It does not look like it is possible directly. However, you can create a VI with the silver controls of interest on the front panel, then Move them to your target during scripting. This trick works for any sort of custom control. Alternately, you can create custom control VIs (.ctl) which only contain a single silver control and pass the path of the control to your create VI object.