Can I have components of the map open by default?

You can, and we give our recommendation of each component in this video/article

In this video/article, we talk about what is good practice to have open and what is good practice to have closed.  You have to remember that on a phone, you have limited space and you want to have the map showing as much as possible.  When you show your company logo, a title or the map legend by default, it takes up space on a phone that hides the map, which makes it less user friendly.  Watch this video to see how and to learn what we recommend from our years of experience.