I did, but that's just the same as '/equipaction 2' you don't actually need the quotes. It removes your normal JA's. I also tried /equipaction 31, thinking the bottom two rows for traits and gather/crafting abilities would be considered rows 31-50.
And I just now realized that you don't need 'main', 'trait' and 'sub' on the end when adding abilities... guess I'll update the post to make that part less confusing ;p