OctaneRender's Local DB is similar to the LiveDB in that it can be accessed through the tab in the Outliner. Instead of storing the files on the cloud, LocalDB stores the files locally. To save an OctaneRender Nodegraph to the LocalDB, select it in the Nodegraph Editor and choose "Save..." From the Pop-up menu, choose LocalDB as the Location. You can set the other options such as category and description using this pop-up (Figure 1).
Figure 1: The LocalDB options
To create a thumbnail image, right click over the node in the LocalDB list and choose Make Thumbnail. A pop-up will open with controls for customizing the thumbnail (Figure 2).
Figure 2: Create a thumbnail for your LocalDB files
You can set the location on your hard drive where the LocalDB files are stored using the fields in the Applications tab of the Preferences (Figure 3).
Figure 3: Set the location of the LocalDB in the Applications tab of the preferences