Override add overlay button

[Timothy_Gandion]

So I newly created an app, a time-in-time-out system. I want to be able to override the add icon below and turn it into a “time in” or “time out” button that automatically saves to my Google Sheets (since the system-generated add action below has to open a form first before saving). How do I do that? I created my own behavior that does this but it’s always this add action button that shows up.