Azure - relation between resource group and affinity group -

i have read affinity group, , allocates services close in datacenter, same rack. on other hand, new resource groups give me easy access managing services related.

i want deploy app website + sql + storage, im going create resource group them, , better performance, want choose affinity group (previously created), cant.

using portal management can choose affinity group not affinity group. , using beta portal management can choose resource group not affinity group (affinity group no appears on location list).

i tried using powershell mode managing resource groups, cmdlet create website dont have parameter affinity group (only have location).

i wondering if in 1 deployment can choose affinity group , resource group. there no docs this. or maybe resource group replacement affinity groups, dont know.

edit: still cant it
pd: hahah sorry gramatical errors, speak spanish here in peru.

here how can create resource group belongs affinity group:

1. from old portal, create affinity group (if not created)

2. from old portal, create cloud service , associate affinity group.

3. from new portal, cloud service listed under "resource groups"

4. now when add service resource group associated cloud service , affinity group.

it seems 'cloud services' called 'resource groups' can't find documentation confirm this.