Step 1.  Open Setting using the Sortd menu on the left

Step 3. Specify the name of your team and select a plan

Step 4. To finish up, click on the blue or purple button to start your trial.

After the team is created you can open the board switcher again (see step 1) to create a New Board inside that team.

  NOTE. If you don't have Sortd installed, install Sortd from the Chrome Web Store using this link.