Hi,
you do not expect my answer "Yes, I know", do you?

But I hope you know that multiple questions are stored
selected = "Y"
not selected = ""
And knowing that in a boolean expression "0" means FALSE and "1" means TRUE (therefore the default relevance equation is "1") you can do the following
{sum(1*intval(Q1_SQ001=="Y"),2*intval(Q1_SQ002=="Y"),3*intval(Q1_SQ003=="Y"),4*intval(Q1_SQ004))}
You see:
If Q1_SQ001 is selected, the term
Q1_SQ001=="Y" is TRUE (=1). The function "intval" just to make sure it is an integer.
This you multiplicate with your desired assessment value.
Here I chose the values 1,2,3,4, just to show something.
Example: SQ001 and SQ003 are selected. The result of the equation is:
{sum(1*1,2*0,3*1,4*0)} = 4
Joffm