1. Remove the array filter Q11 from Q14
2. Use this as x-scale of Q14 (to be able to use the "hideEmptyColumn" feature)
{if(count(that.Q11.sq_A2)-count(Q11_A2_15)>0,"Q11_A2_text","")}
{if(count(that.Q11.sq_A3)-count(Q11_A3_15)>0,"Q11_A3_text","")}
If I understand correctly you want to show the selected products of Q11. This is an array(numbers).
So you check the count of answers with function count(), but have to subtract the mention of "None of these" (this is a normal option, so will be counted)
You can't insert the text by ExpressionScript, so manually.
Here the text has to be inserted into the subquestion.
Joffm