It depends on how often it receives the command from outside.
There are two pronouns in that sentence that have no referents. As is, it makes no sense.
Quoting what you are replying to might have resolved one of the referents. Though, not likely.
it will be a push button to force feeding.
So, you want the Arduino to do something, once, when the switch is pressed (and held) or continuously as the switch is held.
You need to clarify your requirements.