Strength Training logging

Even though I wasn't tracking my strength training recently, I remember seeing the box to add those exercises on the training log. Now that I want to keep track, the box is gone. My current training graph has a label for strength minutes but I can't figure out where to input that information.

I found this article on how to log strength -

http://beginnertriathlete.com/cms/article-detail.asp?articleid=925

but I don't have the 'actual strength training' box. Is this something I don't have access to as a Bronze member?

Thanks for any help!