Go to the Toolbar subtab.
The panel is divided in two sections. The left side contains a list of actions, while the right side contains an action tree, displaying the list of actions added in the toolbar. The special entry called Separator allows you to visually separate the actions in the toolbar.
Add as child or
Add as sibling button.Result: When opening a document for the particular framework in Author mode, the toolbar with the new buttons will be displayed in the toolbar area.