As molecular modelers, precision and flexibility are essential. One of the common challenges we encounter is managing complex editing tasks during the design of molecules or structures. Performing multiple adjustments can sometimes lead to mistakes, and retracing our steps isn’t always intuitive. This is why understanding and effectively using the Undo and Redo features in SAMSON can truly enhance your productivity and workflow.
Why It Matters
In molecular modeling, every adjustment counts — whether you’re tweaking a molecular structure, building something new, or trying transformations. However, not all actions have predictable consequences. A single misplaced adjustment can disrupt a long modeling session. The ability to navigate through your action history, undo errors, or redo reversed steps is critical for recovering and refining your work efficiently. SAMSON takes care of this elegantly through its History view.
Exploring SAMSON’s History View
Each document in SAMSON maintains its unique history. This is essentially a list of all undoable actions performed within that specific document. The History view provides you with a clear, visual representation of this timeline. You can return to any previous document state simply by selecting the corresponding action.
To open the History view in SAMSON:
- Go to Interface > History in the menu, or
- Use the shortcut Ctrl+3 on Windows/Linux or Cmd+3 on Mac.
Using Undo and Redo Effectively
You can navigate through your action history using the following commands:
- Undo (Ctrl+Z on Windows/Linux, Cmd+Z on Mac): Reverts the most recent action.
- Redo (Ctrl+Y on Windows/Linux, Cmd+Y on Mac): Re-applies an undone action.
Alternatively, these options are also accessible via the Edit menu. If you prefer a more visual approach, you can click directly on actions in the History view to jump between different states of your document.
Things to Keep in Mind
Not all operations are undoable. Certain changes may affect the data in ways that cannot be reversed. If an irreversible action (such as a non-undoable transformation) is performed between undoable operations, it might prevent you from fully retracing your steps. It’s always a good idea to inspect the History view periodically, especially during complex workflows, so you can track dependencies and ensure changes can be undone if necessary.
Applications in Molecular Modeling
Here are a few scenarios where mastering undo and redo can save time and effort:
- Editing Structures: When fine-tuning structural components, you can test multiple configurations by reversing and reapplying changes seamlessly.
- Building Molecules: During the construction of complex molecules, undo gives you the freedom to experiment without worrying about irreversible errors.
- Transformations: Trying out different object movements or alignments becomes risk-free when you know you can undo mistakes.
Conclusion
SAMSON’s undo and redo functions, supported by its History view, offer a powerful way to confidently experiment while maintaining control over your molecular editing process. By integrating these tools into your workflow, you’ll navigate complex modeling tasks more effectively.
To explore these features in more detail, check out the official documentation page here: https://documentation.samson-connect.net/users/latest/history/.
Note: SAMSON and all SAMSON Extensions are free for non-commercial use. You can get SAMSON at https://www.samson-connect.net.