If a custom Action derives from ActionCheck, it will have two ouputs, and you can override the CheckCondition function to determine which is run after. See the included ActionCheckTemplate script for a template, or ActionObjectCheck for an example.
If you're looking to react to Player input, though, an Action likely isn't the best way to do so - and you'd be better of with a custom script that reads input inside a standard Update function. Depending on the result, you can then run an ActionList manually by calling its Interact function.
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If a custom Action derives from ActionCheck, it will have two ouputs, and you can override the CheckCondition function to determine which is run after. See the included ActionCheckTemplate script for a template, or ActionObjectCheck for an example.
If you're looking to react to Player input, though, an Action likely isn't the best way to do so - and you'd be better of with a custom script that reads input inside a standard Update function. Depending on the result, you can then run an ActionList manually by calling its Interact function.