When a motion is worth reusing, save it to My Templates. Only you can see it.
- Open the preview, then choose Save to My Templates from the menu in the top right
- Export that version as MP4 first. The save uses that file
- Give it a title, or leave the title blank and it is named for you
- Pick the frame that shows as the thumbnail
Find it anytime under My Templates on the templates page. Open it, change the text, colors, or images, and export again.