I'm trying to figure out how to redirect users if they are already logged in.
For example, i want to create a landing home page to gather users which is hidden to logged in users. If they're are already logged in, how can I redirect them to another page?
You need to add a PHP snippet (which you can add at Toolset > Settings > Custom Code) that checks if the current page is the one you want to target, checks if there is a logged-in user, and if so performs a redirect.