From the My Studies page, click on the required study.

At the top right of the page (just under your name) is a Hamburger Menu for you to click.

Select Edit Study

 Either type the date in manually or use the calendar icon to select required dates.

Click Save Study when complete (or Cancel if you don’t want the changes saved)

Remember, this could incur additional fees depending on your subscription level, but the Cogniom team can answer any further questions specific to your situation.