You can remove a source clip from the Sources list. If you disconnected a source clip from the source node, the entry exists in the Sources list, but the clip name and proxy no longer appear. Because the stroke information is stored in the node, you can reconnect the same clip or a different clip to the source node, and the stroke information is preserved. All strokes in the canvas using the source are repainted using the new source clip.
When you delete a source node, the entry is removed from the Sources list, and the strokes stored in the node are deleted permanently.
To remove a source clip from the Sources list:
To delete a source node:
