First, you need to log in to your Kanban Tool account, and - from the Dashboard - go to My profile, and to API access. Here, generate your API token and copy it.
Then, go to https://chrome.google.com/webstore/ and add this extension to Chrome.
Click the top-right corner menu of your browser to enable the Kanban Tool Add task button.
The last thing to do is to fill the form with your Kanban Tool domain name and the generated API token.
Once you’ve set that up, you can start adding new tasks through one click on the browser’s corner menu.