I followed the video tutorial on how to create / add new custom fields, and apply them to forms etc. To make it all visually easy to understand, I took some screenshots.
Breakdown in words:
> Custom Fields - I am able to enter all the data. However when I click 'add new custom field' my screen resolves to nothing. Just white and blank. So I ignore.
> Form Layouts - I am able to enter all data, and, create new form layout.
> Form Layouts - I can see my new form layout called 'example' On the far right i click on the little green button with a plus sign so I can apply different fields to categories etc.
> Will only allow me to select fields (tick fields i'd like to add) However when i click 'add fields' nothing happens. No fields are added.