What used modules in Organic Food theme

Hi!

I want to modify front page.

but I have not seen even once in the form block below.

ex)

[column class="col-lg-3 col-md-3 col-sm-3 col-xs-12" begin="1"][feature type="figure" title="Step1" image="http://statics.drupalexp.com/organicfood/step1.png" icon="fa fa-eye"]Choose your products[/feature][/column] [column class="col-lg-3 col-md-3 col-sm-3 col-xs-12"][feature type="figure" title="Step2" image="http://statics.drupalexp.com/organicfood/step2.png" icon="fa fa-leaf"]Local Farms Produce It[/feature][/column] [column class="col-lg-3 col-md-3 col-sm-3 col-xs-12"][feature type="figure" title="Step3" image="http://statics.drupalexp.com/organicfood/step3.png" icon="fa fa-shopping-cart"]Pick Up From Local Spot[/feature][/column] [column class="col-lg-3 col-md-3 col-sm-3 col-xs-12" end="1"][feature type="figure" title="Step4" image="http://statics.drupalexp.com/organicfood/step4.png" icon="fa fa-home"]Or We Can Delivery It Fast[/feature][/column]

I know view module, context module.. etc

If I understand this form, What sholud I do?

Thank you.