Once you have your layout set. Now you can adjust the in and out points and even remove sections right here in the Riverside editor. You can click and drag the beginning or endpoint and Riverside will start the exported video right here where you set the endpoint and or outpoint. If there's a section you'd like to remove from your recording, move the playhead to the section you'd like to remove.
If you're on our team's account, and you've set markers, you can even choose to move the playhead to one of those markers, and then click the Split command. Once you split these clips, you now have an in and out point for each side of the clip and you can drag those to exactly where you need them. When you export this video Riverside will only include the highlighted purple sections, anything grayed out will not be included in the final recording.