If you want to create a note as a reminder, or even to help explain something to your colleagues, you can use the notes features in the Smartlook player:
Pause the session where you would like to leave a note. Then:
Click "Notes" in the bottom left of the player and then click "Add note" after you have typed the note. You can then choose to share the recording as you can see in the .gif above
How can I see my old notes?
You can filter the notes in the recordings tabs:
From your Dashboard click on:
Recordings > Create Filter > Notes > (with any notes) Save. You can then press the play button on the recordings and you will be take to the moment just before where the note was saved.