More complex filtering on machine Roles in step definitions
It would be really handy to say execute this step on all tentacles with the role 'FrontEnd' and 'Admin', or 'FrontEnd' but not 'OldOS'
As it is we are managing a whole bunch of roles and tags because some applications in a project can only be deployed to machines with a newer OS and some can only go to a Task server and some only to in internal server. NOT or AND would seriously simplify the 30 odd tags we have now :)

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Anders Andersson commented
As it stand atm, roles are almost useless.
They need to be to specific for us to target the correct servers.Unless we create an environment pr applikation. (We dont want to do that.)
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Richard Hewett commented
I agree - the machine tags are great, but severely limited in their scope. Having the ability to include operators such as "NOT" and "AND" would improve things immensely