You can easily do that using STV's key-binding method. For more on the key-binding method, please refer to:
1- The samples app (called "Overview App" in STV 2.0), under the "Key-Binding" tab.
2- The key-binding video tutorial:
sensiblecocoa.com/video-tutorials/watch/...inding-tutorial.html
Now after you use key-binding, you need to save and load from NSUserDefaults.
1- To save: simply set the values of all your keys to keys of the same name in NSUserDefaults.
2- To load: load the keys from NSUserDefaults into the tableModel.modelKeyValues dictionary (again by setting its key values to the ones in NSUserDefaults), then call [tableModel.modeledTableView reloadBoundValues].
Please tell me if you need more help.