From the Dropbox Operations screen you can select one of the following operations:

1. Upload local tuning files to Dropbox. This function copies tuning files that are currently stored locally on your device to the Dropbox file system. You can choose to upload all files, or just the ones that have been modified since the last upload (which is the default). In addition to tuning files, this also uploads your unequal temperament files and tuning exam report files, if you have any.

2. Download Dropbox tuning files to local storage. This function copies tuning files stored on Dropbox to your device. As with the upload, you can choose to download all the TuneLab files on your Dropbox, or just the ones that have a more recent modification date. This is useful if you have several devices with TuneLab and you wish to transfer tuning files made on one device to other devices.

The upload and download process automatically create any necessary folders to duplicate the file structure, and it automatically over-writes any files with the same name but an older modification date. At the end of every transfer, the number of files transferred is displayed. From your desktop computer you can find your TuneLab files on Dropbox under Apps/TuneLab Tuning Files.

3. Link to from Dropbox (or Unlink from Dropbox). Before you can access tuning files stored on Dropbox you must link to Dropbox. You may need your Dropbox ID and password to do that. If you wish to link to a different account you must first unlink from the current account.