Download and install TNTDrive
Login in your Cynny Space account
Click on "S3 Access" section
Click Show to unhide your API REST Endpoint, "S3 compatible API Access Key" and "S3 Secret Key"
In TNTDrive click Add New Mapped Drive
Then fill the form with the following informations:
By clicking on advanced-options you can also profile the disk quota that TNTDrive will use as cache (in the figure a sample configuration is shown).
In Tools -> Options select the tab General Set the Use Amazon S3 Multipart Upload Part Size (MB) to 5
Once you configure TNT you'll just have to activate the new mapped drive.