How to change colors styles of multiple buttons in button group at once?

Is the copy and paste style feature limited to the premium version of this plugin? I do not see it as an option in the block editor bar options for the stackable button group… if it’s not a free feature, is there another way to set the default button styles so if we have 8 buttons in a vertical menu, we can update the default button style somewhere and then it will update all the buttons in the widget? Thanks