A pretty big change for V2 was to remove the "button types" and make connect all actions to the Action Framework - where you can trigger a host of different actions.
The SF Button/link actions should be available in the "Run data source action" section of that list. Note that the options available to be run there depend on what you have configured in your Buttons and Links setup screen on Salesforce.
Let us know how it goes @Larry Wearne Jeng ! Also here is a link to our docs that can help you use the Action Framework :
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