Markers
Markers are time-stamped annotations attached to specific positions in the video timeline. They appear as colored indicators on the timeline ruler and serve as reference points for navigation, review, and editorial decision-making. Closed Caption Creator supports multiple marker lists within a single project, each with its own color, allowing you to organize markers by purpose or workflow stage.
Shot Changes​
The first marker list in every project is the Shot Changes list, which is reserved for automatic shot change detection. Shot change markers are displayed as red markers on the timeline ruler. They can be used as snap targets when timing Events — any Event whose start or end time falls within 0.5 seconds of a shot change marker will snap to that position automatically when using the Sync to Scene Changes option.
The Shot Changes list is always present and cannot be deleted. To populate it, use the Shot Change Detection feature available in the AI Tools menu.
Creating and Managing Marker Lists​
Beyond the Shot Changes list, you can create as many custom marker lists as your workflow requires. Each list is given a name and is automatically assigned a distinct color. You can switch between lists using the dropdown selector in the Markers panel of the QuickTools drawer. Only one list is active at a time, and all add and remove operations apply to the currently selected list.
To create a new list, click the add button in the Markers panel header. To delete a custom list, select it in the dropdown and use the delete control. The Shot Changes list cannot be removed.
Adding and Editing Markers​
Adding a marker captures the current video playback position and opens a prompt where you can enter an optional comment. The marker is automatically sorted into the list by time so the list always remains in chronological order. Markers are displayed in the panel as a list showing the SMPTE timecode (calculated from the video's incode and project frame rate), the elapsed time in seconds, and the comment text.
To edit a marker, click the edit button on the marker row. The prompt that opens allows you to update the comment. The marker's time is also updated to the current playback position when editing, so you can correct a misplaced marker by seeking the video to the correct frame and then editing the marker.
Clicking any marker in the list seeks the video to that marker's position, making markers convenient jump points during review. To remove a marker, click the delete button on the marker row.
Overflow Menu Options​
The three-dot overflow menu in the Markers panel header provides additional operations for the active marker list.
Import Markers opens the marker import dialog, which accepts structured marker files in JSON format. Each marker in the file requires a time value (in seconds) and an optional comment string.
Export CSV downloads a spreadsheet of all markers in the active list. The exported file includes columns for ID, time in seconds, SMPTE timecode, comment text, and the list name. This format is compatible with most spreadsheet applications and can serve as a shot list, review log, or handoff document.
Clear Descriptions removes the comment text from every marker in the active list while preserving the time positions. This is useful when you want to reuse a set of marker timecodes from a previous review pass without carrying forward the old comments.
Creating an Event Group from Markers​
A particularly powerful use of custom marker lists is converting them directly into a new Event Group. The Create Event Group from Markers option in the overflow menu asks whether each marker time should be treated as the start or the end of an Event. Closed Caption Creator then generates a new Event Group where each Event corresponds to one marker, with the marker's comment automatically placed into the Event's notes field.
This workflow is useful when you have used markers to log timecodes during a screening and want to convert that log into a timed caption or transcription starting point, or when structuring an audio description project around pre-identified shot positions.