Relevant mostly for open ended grid questions. This function append the text inText to an existing text in topic inTopic in question inQuesIdx, in a specific loop iteration, and set the new text in this topic for this iteration.

Relevant mostly for open ended grid questions. This function append the text inText to an existing text in topic inTopic in question inQuesIdx, in a specific nested loops iterations state, and set the new text in this topic for this iterations state.