Hello!
Our
Triplanar Sample node is intended to be used as a general purpose triplanar effect, so it won't be able to accommodate specific effects such as panning.
I suggest that you look into our TriplanarProjection sample, which provides an example setup for a triplanar effect that may be adapted and customized to suit your needs.
Please let me know if this helps, and if you have any further questions regarding the suggested sample, thanks!