To activate these features for enabling your users to undo/redo their actions in the editor, you are to purchase any paid subscription.
Please be informed that you need to implement the undo/redo buttons by yourself outside the Stripo Plugin Editor. We do not limit you on the creation of your own buttons or controls related to your application, you should only transmit their IDs during the plugin initialization in the apiRequestData: (refer to the “Plugin configuration” section).
This allows you to put these buttons in any place on your web page and design them as you like.
If you have any questions please email us at firstname.lastname@example.org or just ask in chat.