How do I add a button to the "Description" bar on the product editing page?
The button should only be in tab Description, where it has the product description.
I need to know how to set the route and how to mount the Block so that I insert a button into it and it will appear on the product editing page in adminhtml calatog product tab .
Ideally, you should do this through a module, but this does bring a lot of detail that is not the focus right now.
Notice that the Block you are trying to change is part of the core and is in: app / code / core / Mage / Adminhtml / Block / Catalog / Product / Edit.php
There in the constructor runs: $ this-> setTemplate ('catalog / product / edit.phtml');
I think this is the view you want to manipulate.
There for the button action, you would direct to a controller of your module, where the prefix would be configured in the config.xml of it. For more details, see the sources of Magento modules that are in GitHub.
I will indicate 2 that I had some contact, where in the first I put a reversal button in the order details administrative page:
