Problem with creating a bus send to a reverb

Question

Hello!,

I'm new to DS and have been learning my way around over the past couple of week. A lot is pretty straight forward but I am having a hard time figuring out how to create a bus and have it send to a reverb. i.e. to set different amounts of reverb for different drums. 

I've been using the code from the "busses" section of the documentation but to no avail. 

<bus busVolume="0.5" output1Target="MAIN_OUTPUT" output2Target="AUX_STEREO_OUTPUT_1" output1Volume="0.8" output2Volume="0.5">
    <effects>
        <effect type="Reverb" wetDryMix="0.5" roomSize="0.5" damping="0.5"/>
    </effects>
</bus>

and this:

<group output1Target="MAIN_OUTPUT" output1Volume="1.0" output2Target="BUS_1" output2Volume="0.2">
      <sample path="Samples/Volca Keys Poly-V127-29-F0.wav" loNote="17" hiNote="17" rootNote="17"/>
      <!-- More samples here -->
</group>

I am a bit confused on where the <effects> should be placed. When I put this code into my test DS nothing happens. No reverb is applied. I have a working global reverb but I really want to have a reverb that I can adjust per sound.

I can toss in the bit up code I'm using if that would help?

Thanks in advance!

Charlie