Hello,
Set fan 1 to your desired color and effect, then set the other fans to Copy Color effect. After that, hit the save button in the upper right corner and everything should synchronize.
The 'RGB' tab you mentioned is actually the button for synchronizing your Thermaltake Products with Razer Chroma.
The software really needs some sort of built in guide to explain things. There are a lot of nuances that aren't mentioned in any of their help videos either.
Let me know if you need further assistance.
