The MQL5 Storage is based on a free centralized version control system Subversion 1.7. You can work with the storage not only from MetaEditor, but also via any external client that supports Subversion 1.7. For example, Tortoise SVN.
More info on Subversion is available in a special book.
Install the latest version of Tortoise SVN. Create any folder to connect to previously generated MQL5 Storage. This folder will be synchronized with the storage. Next, open the folder's context menu and click SVN Checkout.
Enter the storage address in the "URL of repository" field:
Click OK. If you see an error validating the certificate, with which connection to the repository is encrypted, agree to accept the certificate permanently (Accept certificate permanently). This is a trusted certificate issued by Thawte Inc.
Next, specify the login and password of your MQL5.community account:
After successful authentication, the data is downloaded from the repository to a local folder. Now you can work with the repository via Tortoise SVN.