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Use the lab **workspace bar** (Design / Operate / Visualize) without guessing where Classroom, Preview, or More live.

Workspace bar with modes and More
Workspace bar with modes and More

Goal

Use the lab workspace bar (Design / Operate / Visualize) without guessing where Classroom, Preview, or More live.

Workspace bar with Design, Operate, Visualize, Classroom, and Preview
Workspace bar with Design, Operate, Visualize, Classroom, and Preview

Why the workspace bar exists

The classic multi-row Focus chrome is replaced by one dense Lab workspace bar so the canvas stays large. The same topology stays under three modes; tools change with intent.

Mode switch (always on the bar)

ModeJob
DesignPlace nodes, connect ports, ScriptPad, undo/redo, templates
OperateStart / Stop / Wipe, consoles, capture, automation
VisualizeTraffic Lens, Validate, Protocol adjacency, Present, L2/L3 views

Why modes: Editing while students watch, or starting nodes mid-draw, causes accidents. Modes lock intent.

GUI tutorial

Step 1 - Find the workspace bar

Workspace bar
Workspace bar

  1. Open any lab
  2. Look at the dense top bar: modes, Save, Zoom, Classroom, Preview, More
What you seeDesign / Operate / Visualize switch
ExpectedActive mode is highlighted

Step 2 - Open More

  1. Click More
  2. Note mode-specific items (Grid in Design, Start all in Operate, lenses in Visualize)

Step 3 - Jump to feature tutorials

NeedGo to
Console dockOperate and consoles
CapturePacket capture
Traffic / bandwidthTraffic Lens
Link delay / lossLink inspector and impairment
Palette / inspectorDesign mode

Primary actions on the bar

ControlWhy
SaveSync topology from the appliance
Undo / RedoFix mis-clicks (Design)
ZoomIn / out / reset percentage
SearchFind nodes, links, text on the canvas
LabelsToggle interface / mid-link labels
AssistLLM dock (needs OpenRouter + Assist entitlement)
ClassroomShare students + class timer (Enterprise for timers)
PreviewFullscreen Design workspace - tools stay enabled
MoreGrid, snap, lock, link path, Guide, ScriptPad, Start/Stop all, lenses

Classroom popover on the workspace bar
Classroom popover on the workspace bar

More menu (highlights)

ItemMode contextWhy beginners care
Overview / Validate / Protocol adjacency / PresentVisualizeSwitch Visualize lenses without leaving the canvas
Grid / SnapDesignAlign nodes neatly
Lock positionsDesignStop accidental drags during a demo
Link pathDesignCurve / bezier / orthogonal / straight
Guide / ScriptPad / ConsoleAnyLesson pane, configs, terminal dock - Operate and consoles
Capture / CapturesOperateStart PCAP jobs - Packet capture
Traffic / BandwidthVisualizeUtilization paint - Traffic Lens
Start all / Stop allOperateLifecycle without hunting context menus
Export lab packAnyShare *-vex-nx-lab.zip

Link quality (delay / loss): click a link -> Link inspector and impairment.

Present vs Preview (do not confuse)

ControlWhat it does
Preview (bar button)Immersive Design - fullscreen, edit tools still work
More -> Present (Visualize)Clean Present lens - demo HUD, edit chrome hidden

Full matrix: Visualize, Present, and Preview.

Classroom (on the bar)

  1. Click Classroom
  2. Share students (checkboxes or comma-separated usernames)
  3. Pick duration + Then: Stop nodes or Wipe nodes
  4. Start class - countdown chip appears; Cancel timer to clear

Details: Sharing labs and class timers.

Expected result

  • Mode buttons highlight the active mode
  • Classroom and Preview are visible without hunting Focus chrome
  • More menu lists Start/Stop all and Visualize lenses

If it fails

  • No Classroom button -> you are not owner/admin on that lab, or the lab is in Present lens
  • Toolbar looks empty -> confirm you are inside a lab (Labs -> open a lab), not only on the Labs list
  • Old docs mention Design / Operate / Observe / Validate / Present as five peer modes - that model is retired; use three modes + Visualize lenses