Github user richardcloudsoft commented on the pull request:
https://github.com/apache/incubator-brooklyn/pull/639#issuecomment-101647067
Please alter the commit message (not the PR message, although you could do
that too) to include documentation of this feature. Your example in the pull
message...
```
brooklyn.location.named.AWS\ Oregon.templateOptions={ subnetId:
subnet-a10e96c4 , securityGroupIds: [['sg-a2d0c2c7']],
mapNewVolumeToDeviceName: ["/dev/sda1", 100, true]}
```
... is a bit confusing because it doesn't explain why you are using `[[ ...
]]` in one place and '[ ... ]' in another.
Better still, document it on the [jclouds Config Keys part of the locations
page](http://brooklyn.incubator.apache.org/v/latest/ops/locations/index.html#jclouds-config-keys)
of the user guide!
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