The Dec 10 2013 release notes include this:
New utility added
- File > Utilities > Move External Attachments into Brain – moves all externally linked file attachments
into the Brain
This sounds like a powerful utility, so before I do something I'll regret, I'd like to ask for clarification. If I use this utility does it:
1 - Move every single externally linked file attachment into the Brain or
2 - Move every single externally linked file associated with the currently selected thought into the Brain.