It’s entirely up to you, you can stop after your march then start again and play your Strathspey & Reel. You can also retune between your March and your Strathspey. If you do stop, you should record your Strathspey and Reel on a separate recording, then upload your two recordings to the appropriate Events separately.
If you don’t stop, simply upload the same recording to both Events and we will take care of the rest.