To change the HTML block, move your mouse over the HTML element and click on the pencil icon that appears.
For example, let's look at how to change the Facebook link in the HTML element located in the default template's footer. Move your mouse to the HTML element and click on the pencil icon that appears.
The HTML editor window appears. To change the default Facebook link, search the original link from the code and insert your own link to the exact same place.
You can change other links the same way - just insert your own link to the exact same place the default link is located in the code. Do not delete any symbols around it.
NB! If you accidentally delete something from the code and are not sure how to get it back, click "Cancel" (not "OK") and start again.