No Visible if conditions for sbsar files are currently supported.
However, these conditions are highly practical and, if supported, can be heavily used by users to build a variety of generators.
In the attached file below, I show an example of the terms I used.
Also, for more information, I will put the relevant link of the document in this section:
https://substance3d.adobe.com/documentation/sddoc/visible-if-display-hide-inputs-and-outputs-with-co...