visual-composer not work properly. new user

New user. a lot of problem

  1. How do I center an image gallery?
    For some reason it shows the 3 pictures I added aligned to the left.

  2. How do I choose the sizes of each picture in the gallery?
    It is scaling too small!

  3. How do I add a form to the page?
    Do you have a form??

  4. How do I pull statistics from the form?
    I want the form fields to “dump” into a file and to an email.

  5. How do I make the button in the form or any button send an email?

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