The Button Row card adds a row of buttons, so you can align buttons next to each other.
To add a button row, drag the button row card to the page preview. You can add buttons by selecting the row, and clicking ‘add button’ in the property pane.
You can edit buttons in a button row by clicking once to select the row, then again to select the button you wish to get. Editing is then done as with a normal button card.