A molecular animation can be scientifically clear and still be difficult to follow if the camera shifts unexpectedly. When you are editing a document, changing the view is natural—but that change can also affect the view you want to preserve for a presentation. The Hold camera animation helps address this problem by keeping the camera parameters fixed between two frames.
This is useful whenever the system should remain in a chosen view for a stretch of the timeline: for example, while an audience reads a label, compares a molecular arrangement, or follows another animation that does not need the camera to move. A steady view gives viewers one less thing to interpret, so the molecular changes remain the focus.
Set the view before you add the hold
Start by choosing the frame where the static view should begin in the Animator’s Track view. Then orient the view or camera to the desired position. This order matters: the Hold camera animation uses the camera parameters at the start frame, so first establish the composition you want to keep.
Once the view is ready, open the Animation panel in the Animator and double-click Hold camera. Set the animation’s end frame to cover the interval where you want that view to remain fixed. If you later adjust the timing, you can move the start and end frames.

A simple planning habit
Before adding camera effects, decide which parts of the presentation should be visually stable and which parts should show a deliberate change of view. Use Hold camera for the stable sections; when you want the camera to move, the related Move camera animation may be appropriate. Thinking about these sections in advance can make the timeline easier to read and help prevent an incidental view change from becoming part of the presentation.
After setting the end frame, review the animation across the intended interval. Check that the start frame shows the desired orientation and that the hold lasts through the frames where a fixed view is important. If the view is not the one you intended, return to the start frame, orient the camera, and adjust the animation timing as needed. This quick review is especially helpful after editing the document, when you may have changed the view while working.
Find it in the current interface
Some older instructional material may show an Animation menu. The documentation notes that this menu is no longer present: access animations through the Animator’s Animation panel, and use the Animator’s controls for presentation actions. That keeps the workflow centered on the current interface.
Use a camera hold when the content needs to change but the viewpoint should not. It is a small timeline choice that can make a molecular scene easier to watch and interpret. Learn more about the Hold camera animation in the documentation.
Note: SAMSON and all SAMSON Extensions are free for non-commercial use. Get SAMSON.
