Hello, @pwgl,
Where are you using the Studio? I mean on which page?
We have already organized the Studio blocks properly, as follows:
Single Product template only shows when you use the Studio from Porto >> Template Builder >> Single Product.
Header Studio Blocks only show when you use the Studio from Porto >> Template Builder >> Header.
Footer Studio Blocks only show when you use the Studio from Porto >> Template Builder >> Footer.
And so on…
This is how it works.
Best Regards,
PThemes Team.