Silhouette PC main rail can be widened, and the specific steps are as follows:

Open the clip and import the video material;

Select a video clip to resize the track;

Click the "Size and Position" button in the lower right corner to open the "Size and Position" adjustment panel;

In the panel, resize the video clip by dragging the slider or manually entering a value;

You can also drag the video picture to adjust its position;

Preview the adjusted effect. If it meets the requirements, click "Save".