Sourcegraph Notebooks PM here. We have a notepad feature you can enable that basically does what you're describing and allows you to create a notebook from the saved content in one click. There's a button to enable the notepad on the notebooks page (https://sourcegraph.com/notebooks or https://<your-sg-url.com>/notebooks).
I just discovered this feature so I haven't played with it enough yet but it seems to tick all my boxes. One thing that I found confusing about the UX though was that I didn't realize at first I could continue searching around and adding content, so when I added my first bit of content and clicked "Create Notebook" and then subsequently navigated somewhere else and wanted to add content I ended up creating another notebook instead of adding it to a pre-existing one. Or sometimes I come back and want to add more content to an existing notebook, but I don't see how to do that.
That’s great feedback, thanks. We deliberately kept adding to existing notebooks out of scope for the first Notebooks release but had a feeling it would be requested pretty quickly.
It might also be more intuitive to clear out the notepad after a notebook is created but curious what you think.
Thanks again for the feedback, feel free to reply here if you have any other thoughts.
It follows you around as you navigate search results and files and you can add searches, files, and file ranges to it, as well as notes for each item. Quick demo video: https://storage.googleapis.com/sourcegraph-assets/docs/image...