Forms
Form is one of the most sophisticated widget of flatstep. This is needed because form needs can vary a lot.
Form widget is composed by "inputs" each type of input has it's corresponding html input type. Between inputs, a special input called "html" can be added to add some text.
Each input has the "column" property which let Bootstrap to reflow widgets in responsive mode.
Forms can be splitted into several forms to let you embed complex form within other widgets such as accordions or tabs. And off course you can embed forms within other widgets.
To submit forms you need some dynamic content or JavaScript.