How to exclude a AD group members from Citrix XenDesktop Idle and disconnect Citrix Policies being applied?

Please advise.

Go to policies -> Select Scope -> In Security filtering add the users group to apply the policy and exclude users who are all don't need to apply policy.

@Sekar, I have used Citrix default user Policy, not MS AD policy, I have created Idle and disconnected timeouts, but how to exclude this to a particular AD group and how does the Citrix priority number works

oh ok sorry, When you create a policy add the users group and set the mode to disallow to filter the users.
The priority value 1 high priority. Also make sure AD user policy will override all the settings when you face the conflict problem.  AD Policy starts with Citrix Machine Policy  -> AD Group Computer Policy -> Citrix User Policy -> AD Users Policy.

In that case I should create a separate Citrix policy for idle and disconnect time outs and filter the AD sec group? and set the priority to 1?
Please advise

Its better to configure the timeout in AD Policy and use filter settings to config your settings

Please let me know what is the AD policy settings for Idle and disconnect settings.