If you have multiple Google Drive accounts, you may have despaired of syncing all of them to your home computer using the nifty Drive app. There are several third-party solutions available, and you can even trick the app with multiple computer user accounts, but instead of adding multiple users to your computer and using separate installs of Google Drive, here’s an option for “sharing” and syncing based on a “hidden” feature of Drive.
If you hold CTRL when dragging a file/folder, instead of moving it, the item will be “copied” — but not copied like in a physical file system, but instead like Gmail (or original Documents) labels, where it’s more like a reference to the original. You can confirm this by looking at the URL — it’ll be the same between folders.
* Note – I’m not quite certain, but I think the order of where you drag things matters, relating to deletions…
Regarding syncing across accounts:
- share something between your accounts (from 2ndary to primary)
- log in to your primary account (the one being synced)
- go to “Shared with Me”
- CTRL+drag the desired item into the appropriate folder
- as this shared item is now “part” of your Drive docs, it will get synced to your desktop along with everything else.
* Note – if you do not CTRL+drag, it will actually remove it from the shared folder entirely (meaning the other shared accounts won’t be able to see it) — it will actually warn you about this and give you the option to undo it, so pay attention.