So what I am creating is a nice and neat version of the sbsar layout that adapts more to stuff like switches and change the input options in some cases from vector4's to floats and sliders, to then preview in the texture preview window
(Yellow) As to the issues I am having is first having to have the graph from the sbsar selected at least once (from what I read this adds it to unity's active asset list
https://forum.allegorithmic.com/index.php/topic,26600.0.html) to then obtain the texture2d from the archive - if this is not done it doesnt find the texture (or graph I would imagine) and fails to render the rest of the window. unless there is a work around for this?
(Red) As to the main reason above, adding the sbspr button to export and import is just a cleaner way (for this UI anyway) to have it built into it, instead of having to navigate to the substance graph itself to export/import presets.