> ## Documentation Index > Fetch the complete documentation index at: https://docs.altoura.com/llms.txt > Use this file to discover all available pages before exploring further. # Add 3D Models and Media > Attach 3D models to a step from the built-in catalogue, spawn and position them in the physical space, configure interactability and animation, and check the media attached to each step. This page is for **procedure authors** on the HoloLens. By the end of it, you will be able to add 3D models to a step, place and edit them in the physical space, configure how operators can interact with them, and verify the media attached to each step. ## Check the Media Attached to a Step Images and videos are attached to steps in the **Procedures Portal** — see [Assets & Media](/frontline/procedures-portal/assets-media) and [Authoring in the Procedures Portal](/frontline/procedures-portal/authoring). On the HoloLens, the **Media panel** (left side) shows you what operators will see on each step, so review it as you author. Media panel displaying an attached video for the current step with a play button * **Image attached:** the image is displayed statically, with no playback controls. * **Video attached:** a player appears with **Play / Pause** and **Mute / Unmute** controls. The video **auto-plays** when you enter the step and **loops** continuously; you can pause, resume, and toggle audio at any time. * **No media attached:** the Media panel does not appear for that step. The panel refreshes automatically as you move between steps. Full detail: [Media Panel in Author Mode](/frontline/procedures/author/media-panel). ## Add a Model from the Default Catalogue The **3D Model panel** (right side) holds the models attached to the current step. Models can be attached in the Portal — or added directly on the device from the built-in **default catalogue** of common assets (arrows, generic tools, hand poses), so you can build out a step without leaving Author mode. When a step has no models attached, the panel shows a grid of empty slots marked with a **+** icon. The 3D Model panel with eight empty slots, each showing a plus icon Focus an empty **+** slot and air-tap it, or say **"Select"** while gazing at it (see [Voice Commands](/frontline/hololens/reference/voice-commands)). The default catalogue opens in place of the grid. Models are organised into collapsible **groups** — **Arrows**, **Generic Tools**, **Hands** — with the first group expanded by default. Use the **up/down chevrons** on the right to page through a group, and the **caret** next to a group name to collapse or expand it. Default 3D Model catalogue open with the Arrows group expanded, showing eight arrow tiles including Acute, Full Circle, Half Circle, and Insert Focus a tile (for example, **Acute**) and air-tap it, or say **"Select"** when the voice hint appears. The catalogue closes and the model is added as a tile in the 3D Model panel for the current step — exactly like a model attached from the Portal. The selected model now appears as a tile in the 3D Model panel, back in the standard procedure view To dismiss the catalogue without adding anything, select the **X Close** button in its top-right corner. The catalogue is a curated set of common models — custom `.glb` files still need to be uploaded via the **Procedures Portal**. Empty **+** slots are the only entry point to the catalogue; if the panel is full, remove a model first. Models added on the device sync to the same step in the Portal (and vice versa) — if sync looks stale, tap **Procedures** in the side menu on the device, or refresh the browser tab in the Portal. ## Spawn and Position a Model Select the model's tile in the **3D Model** panel. The model spawns into the physical space in front of you, anchored relative to the QR position for the step. Select the same tile again — or a different tile — to spawn additional instances. The model tile is in the 3D Model panel and the model itself has spawned in the physical space in front of the author Tap the spawned model. A **bounding box** appears around it, letting you **move, resize, and rotate** the model in space. Tap the model again to hide the bounding box. Selected 3D model displaying a visible bounding box for resizing and rotating Model availability is **per step**: only models attached to the active step appear in the panel, and switching steps refreshes both the tiles and any placed instances to that step's saved configuration. ## Edit a Placed Model Every placed model shows an **Edit** button (pencil icon) nearby. Selecting it opens the Edit panel for that model instance — all changes apply only to the selected model. Edit panel opened for a selected 3D model showing Interactable, Animation, Duplicate, Copy Position, Paste Position, and Delete options | Option | What it does | | ------------------ | ------------------------------------------------------------------------------- | | **Interactable** | Configure whether operators can move/interact with the model. | | **Animation** | Configure animation playback (shown only if the model contains animation data). | | **Duplicate** | Create a copy of the model in the scene. | | **Copy Position** | Copy this model's position. | | **Paste Position** | Move another model to the copied position. | | **Delete** | Remove the model from the scene. | ### Configure Interactable Behavior Select **Interactable** from the Edit menu. The panel has two toggles that control what operators can do with the model when they reach this step. (See [Author vs Operator](/frontline/overview/concepts/author-vs-operator) for how the two modes relate.) Interactable panel with Interactable and Interactable Ghost toggles turned on * **Interactable** — when ON, operators can move and interact with the model in Operator mode. When OFF, the model is view-only for operators, and the Ghost toggle is disabled. * **Interactable Ghost** — requires Interactable to be ON. When ON, if an operator moves the model, a visual **ghost (shadow)** remains at its original position, showing where the author placed it. ### Configure Animation If the model contains animation data, select **Animation** from the Edit menu. Animation settings panel for the selected model showing Takes, Animate toggle, Playback options, Direction, and Speed controls * **Takes** — choose from the animation takes included in the model (the section is unavailable if the model has none). * **Animate** — toggle animation playback on or off. * **Playback** — **Loop**, **Once**, or **Ping Pong**. * **Direction** — **Forward**. * **Speed** — **0.5x**, **1x**, **1.5x**, **2x**, or **5x**. ### Duplicate, Match Positions, and Delete Open the **Edit** menu and select **Duplicate**. A copy of the model is created in the scene. Scene showing a duplicated copy of the selected 3D model placed alongside the original Open the source model's **Edit** menu and select **Copy Position**. Then select the target model, open its **Edit** menu, and select **Paste Position** — the second model moves to the copied position. Open the **Edit** menu and select **Delete**. The selected model is removed from the scene. Working across a large area? Turn on **Follow Me** (the pin button on the 3D Model panel, or say **"Follow me"**) so the model catalogue keeps up with you as you place and align models — see [Build Tasks and Steps](/frontline/hololens/author/build-tasks-and-steps). For exhaustive detail, see the reference pages: [3D Model Panel](/frontline/procedures/author/3d-model-panel), [3D Model Authoring](/frontline/procedures/author/3d-model-authoring), [Default 3D Models](/frontline/procedures/author/default-3d-models), and [Media Panel](/frontline/procedures/author/media-panel). *** **Next:** [Choice Steps and Completion Rules](/frontline/hololens/author/choice-steps-and-completion-rules)