Hello,
Unfortunately as of right now, that type of option is not available on our website. This is something we can bring up and discuss in our meetings though so it may be able to happen in the future.
The issue though, is that each design in that series probably calls for 1 skein of floss in the colors displayed on the supplies list and we have no way of knowing if even one of the designs will use the majority of a skein or not. I understand the part about not wanting to purchase double of what you need but each stitcher is different and some may use an entire skein of floss for one pattern while another stitcher may use just a small amount for the same design.
So, this could be tricky for us to do on the website but I will make sure it's discussed in our staff meeting with the Tech guys. As for now though, the supply lists are only displayed for one design at a time.
~Kristi @ ECS