Intra-course-only search

When I look at this Appsembler page under “Part III: Courseware Search” it shows an ability to search only within a specific class. Is that a standard Open edX thing or something Appsembler made for their paid customers?

I ask because I have a tutor plugin that sets the following

name: course_settings
version: 0.1.0
patches:
  openedx-lms-common-settings: |
    FEATURES["ENABLE_COURSE_DISCOVERY"] = False
    FEATURES["ENABLE_COURSEWARE_SEARCH"] = True
    FEATURES["ENABLE_DASHBOARD_SEARCH"] = True
  openedx-cms-common-settings: |
    FEATURES["ENABLE_COURSEWARE_INDEX"] = True
    FEATURES["ENABLE_LIBRARY_INDEX"] = True

(Per the Open edX documentation).

And while I see the UI for search through all my enrolled courses, like shown in that link under " Part II: Dashboard Search", I don’t see any sort of UI for searching only from within a single class. (I should probably say I’m on Palm.) Thank you all.