To modify the name of your recordings in the Jamworks application, simply initiate the recording and then click on the recording name to enter the desired title.
Alternatively, you can access the recordings page via the web version of Jamworks at https://app.jamworks.com/session/recorded
From there, click the desired recording to open it, then click on the recording's name to edit it.
Remember to click on the "Tick" icon to ensure the new title is saved!