Our version of GUESS includes the ability to save and restore node positions via new File menu options. To save node positions, choose File > Export Node Positions. To restore node positions, choose File > Import Node Positions.
Node position files are actually just standard CSV files, so we recommend that you choose a .csv file extension when saving node positions. If you examine a saved node position file in Excel (or any other software capable of reading .csv _ files), you will see that there are three columns: originallabel, x, and y. originallabel corresponds to the _originallabel attribute on nodes, and this is how it matches which node to give the specified x and y coordinates to when restoring node positions.
You might also notice the first two entries in this node position file: [cameraScale] and [cameraTranslate]. As mentioned in the below tutorial, one common use of this Node Locking feature is for laying out time sliced networks (or extracted networks from time sliced data). The _[cameraScale] and _[cameraTranslate] are useful for this because they also specify the camera position and zoom level used in a layout.
One might wish to use GUESS to visualize networks of a time sliced nature. Here is a workflow for how to do this in Sci2:
Although there is potential for further automation, the Node Locking feature in GUESS greatly reduces the overhead of laying out "time sliced" networks.