Thanks Greenman but this doesn't allow me to selectively apply security policies to specific devices.
I would like to have a security policy for IOS devices and then only apply that policy to IOS devices.
Scenario is as follows.
Sec Policy 1 - IOS Specific looking for mandatory ios Meraki app
Sec Policy 2 - Android Specific looking for mandatory Android Meraki app.
Sec Policy 3 - Windows Specific and covers off security requirements for windows machines.
When looking at a windows machine on MDM, all three of the above policies are applied to it, security policy 1 and 2 show out of compliance as the windows machine doesn't have an ios or android app installed on it.