@Victor Giron - Not 100% sure on the issue but if you're trying to focus the popover, I'd set an id attribute and then in your button click, add the 'Focus' action and use 'Get element by id' in your formula with the id of the popover.
If it's hidden, it may be that focus won't work until you change the hide to a truthy value, so I'd have button click to set a page variable to true to display the popover if that makes sense. Because it's within a component, it'll happily do it's thing there and you don't have to worry about handling that on the page level outside of the component if you catch my drift?