Hi,
First: What is question CMod3?
Obviously it is a question that contains an answer option coded "Yes".
If this option is selected you want to display "yes" otherwise the text.
There are some syntax errors.
You cannot use curly brackets inside curly brackets.
You have to use the "+" operator.
"Considering that "+PC0.shown+" has"
You cannot use double quotes inside double quotes. You have to change to single quotes.
"You can find more details of this here: <a class='bbcode_url' href='
mix.net/cams/jtc/cm
' rel='nofollow noopener noreferrer' target='_blank'> mix.net/cams/jtc/cm"
Remember: The editor always changes back to double quotes when you edit again.
Don't use <br/>. Use a new equation.