export const formState = {
  progress: {
    groupId: 3,
    questionId: 5,
  },
  content: [
    {
      group: { id: 1, name: 'Company', description: 'Data regarding your company.', questions: 2 },
      questions: [
        {
          id: 1,
          type: 'textField',
          label: 'Required *',
          inputLabelProps: { shrink: true },
          text: 'group 1 question 1',
          answer: '',
        },
    ...
    ...
    ...
    ]
  }

const mapStateToProps = (state) => {
   console.log(state);
   return {
     progress: getProgressData(state),
     content: getContentData(state),
   };
 };

switch (action.type) {
    case UPDATE_PROGRESS:
      formState = state.get('formState');
      formState.progress = action.payload;
      console.log(formState);
      return state
        .set('formState', formState);