In my custom workflow, While assigning workflow for approval in user search result, i need only members of specific Group (Manager). How can i make the do this?
The component which you see on UI are the JSF components created by Alfresco on top of basic components. With each compoent one tag is defined so if you want to customise the component you need to override the tag support classes which are rendering the component.
This component is the UserGroupPicker and tag class is org.alfresco.web.ui.repo.component.UIUserGroupPicker. Look in to the source code and change the logic where it is fetching the users from all the groups. :idea: