Connecting/Linking values to eachother

Hello,

I have a question about connecting/linking values to eachother. In a first stage I have 15 lines with corresponding Normal-forces (Karamba)(see image):

Line 0; -30.83

Line 1; -30.83

Line 2; -58.99

.......

Line 15; -58.35

etc.

Now I need to filter some lines and delete these, so that for instance only Line 1,4,6 and 10 will be shown and the corresponding Normal forces will be given.

So simply my question is if it is possible to let Grasshopper know which normal force belongs to which line. So that after filtering the lines, the corresponding normal forces for these lines will be given.

Thanks in advance