You need to make sure you have the correct set up and that you can login to the admin panel.
You will need to make sure you have made a new block. You can learn how to make a new block by checking out How to Add a Custom Item by Using New Block.
Here's what you need to do:
1. Make sure you've made a new block and remember the name you assigned to it. We will need to look for that name in the database.
2. Connect to your database via phpMyAdmin or whatever you are using. It is important that you are able to located the database tables. We will be editing the record that matches the new block.
3. Once connected, find the "IndexCompose" table.
4. In the "IndexCompose" table, find the name of the block that you added. You can then edit the content field.
For example, you can add HTML or Google search script:
You can see a sample here on the front of BoonexNerd.com.