There are two designers at our agency and we both want to work on an upcoming site in Blocs at the same time to expedite the process. Is it possible to both work separately in Blocs on portions of our site and then eventually combine our blocs pages into one blocs site (using the same templates, etc)? Thanks!
No, you can not. Blocs is not to be meant like Xd or Figma or Sketch tool. If you are working on the file no one can work in the same time.
What you can do is: One designer is working on portion of website. Export as a blocs template or page template and after you both are done you can import those templates in one doc.
I hope this has give you more insight what blocs is 