Carry out the following steps for installing an add-on:
Go to your dashboard and click on Extend concrete5 in the bottom-left corner.
Before you can access the marketplace, you have to connect your site to the concrete5.org community. Click on Connect to Community. You're redirected to a screen where you can log in using your concrete5.org account.
In case you don't have an account on concrete5.org yet, click on the Register button shown here:
Note
This has nothing to do with the user accounts you've already created within your site. This is an account for concrete5.org. You can use one account to connect all your sites to the marketplace; you can also use it to access the support forums on concrete5.org.
Enter your username, e-mail, and a password which you have to confirm, and select the checkbox to confirm that you've read the terms of use and then click on Sign In. Here's an example:
You should get a confirmation that your site is connected to the concrete5...