How can I get the SUM of a single row in an Array?

Im using an array to track level completions with simple 1s and 0s. Im wondering if there is an easy way to get the sum of a row in this array to quickly be able to display how many levels have been completed. If I could get the sum of the row they are stored on in this array that would give me my number- but if there is not a way to do this I can try something else-

Thanks in advance.

Yes you can do this, for example if 0 and 1 are stored at X only i.e. 1,0 2,0 3,0 4,0 then the logic is :

for from 0 to array.width, add array.at(loopindex,0) to variable

At the end of the loop the variable is the total of all values at X.