How do you add next and previous buttons on Libre Base Form?

A Self-explanatory question, just I prefer Excel, and we have now moved to this and I cannot see how to add these macros?
Please see photo on dropbox Dropbox - File Deleted

In edit mode, right click the button and select Control to get to the properties dialog. On the General tab, go down to Action. on the dropdown, select the action desired:

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