[Answer]-Django form_data filter template

The OP wrote:

solved with a simple_tag:

@register.simple_tag
def keyval(fdata, parameter, stindex, ndindex=None):
if(ndindex is None):
    return fdata[stindex][parameter] 
return fdata[stindex][ndindex][parameter]

and I call it in template with:

 {% keyval form_data "FormField1" 0 %}