The question is very confusing... that is to say I'm not sure what you are asking.
You have to get to know the various tools. You usually start with a text and photo arrangement... you choose that when you select start a hub. So there is a text box and it's a lot like notepad with some basic edit tools. You write something and hit the save button. You can add extra text areas, or photo areas or video areas.
The point is you have to get to know the tools and remember to save.
You need to ask a more detailed question or say more about what the problem is. Your question is really hard to answer because you don't really say what the problem is.
So post the question with more detail about what exactly you are having a problem doing.