# Inputs and references > Turn board media into model inputs with I and C, fill slots, reorder references, use start and end frames, text and voice inputs, and @-mentions. Source: https://flashboards.yaroflasher.com/docs/generation/inputs Last verified: 2026-10-13 (checked against FlashBoards app build 042ae39db) A file on the board is only sent to the model as an input. Mark it as one, or have it selected when you click **Generate**: selected media fills the model's empty slots, and the slot list previews what will be used. Once a model is active, the slots it accepts appear at the bottom left. ## Mark items as inputs Select one or more media items and press `I`. Each gets a lime **INPUT** badge with its order number. Press `I` again to remove it. * `C` clears the role of the selected items, as does **Clear AI Role** in the right-click menu. * Only media items can be inputs, not text notes. * In a mixed selection, items that are already inputs get removed, so start from items without a role. ## Fill slots from the slot list Each slot uses the model's own label, such as **Reference Images**, **Input Image** or **Start Frame (Optional)**. Required slots have an orange asterisk and an orange outline while empty. 1. Select media on the board. The slot's add row previews it with its file name; click that row to add it. If you generate now instead, selected media fills the empty slots and the price on **Generate** already counts it. 2. Click **Add input image** for a single slot, or **Add images** / **Add more** for a multi slot. 3. Click an assigned row to find that item on the board. [Video: Select a reference and click the + row with its file name under Reference Images to make it the input. Then write the prompt and pick an aspect ratio](https://media.yaroflasher.com/docs/media/inputs-prompt.h264.7c2b5119.mp4) A single slot holds one item. To replace it, untick its row (**Remove**) and add the new one. A multi slot shows a count such as (3/10), and **Maximum reached** when full. While files upload, the slots show **Preparing upload...**. ## Order matters for multi-reference slots References are sent in the order listed. Change it with **Move up** and **Move down**, or drag a row's handle. The numbers on the board badges update to match. ## Remove inputs * Click the checkbox on an assigned row (**Remove**). * To clear everything, hover the slot list, hold `Alt` and click **Clear all inputs**. ## Switching models clears inputs Picking a different model or workflow clears every input role on the board and turns off **Auto-Upscale**. Your prompt is kept. Assign inputs again after you switch. **Reuse prompt, model, and inputs** brings back the inputs saved with that run, so you don't need to reassign them. See [Generate](https://flashboards.yaroflasher.com/docs/generation/generate.md#reuse-a-setup). ## Start frames, video and audio slots Some video models have slots such as **Start Frame (Optional)**, **End Frame (Optional)**, **Source Video** or an audio slot. Select an image and click the **Start Frame** row, then optionally set the **End Frame**. Each slot only takes its own media type; the **i** on a slot explains how it's used. Attaching a reference video can change the price for some models, so watch the button. File limits are in [Supported formats](https://flashboards.yaroflasher.com/docs/reference/supported-formats.md). ![Two images assigned as Start Frame and End Frame, with INPUT badges and the slot list](https://media.yaroflasher.com/docs/media/inputs-start-end-frames.w2200.4b6709ad.webp) ## Text and voice inputs Text-to-speech and some audio models take text instead of media. A text slot such as **Narration Text** or **Speech text** shows **Using typed prompt** and uses your prompt box. To use a text note instead, select it on the board and click the text row. Audio models that change, clean up, split, cover or extend a recording have a **Source audio** slot. Mark an audio item with `I`, or select it. Option inputs such as **Audio References** show **Select** plus the label; tick up to the allowed number. A **Voice** control may appear under the prompt. See [Prompt and settings](https://flashboards.yaroflasher.com/docs/generation/prompt-and-settings.md). ## Reference inputs with @-mentions When the model has input slots, type `@` in the prompt to open **Asset suggestions**. 1. Filter by **All**, **Image**, **Video**, **Audio** or **Text**. **AI references** are items already assigned, such as `@image1`. **Board media** are other items that fit an open slot. 2. Use the arrow keys and press `Tab`, or click, to insert. `Esc` closes the list. Picking from **Board media** also assigns that item to the matching slot. [Video: Type @ in the prompt, press Tab to insert an assigned input, or click a board item to add it](https://media.yaroflasher.com/docs/media/inputs-at-mention.h264.9f52a0b9.mp4) > **Note.** Typing a label like "Reference A" by hand attaches nothing. Use `@` or `I` so the item is actually an input. ## Related - [Prompt and settings](https://flashboards.yaroflasher.com/docs/generation/prompt-and-settings.md) - [Models and workflows](https://flashboards.yaroflasher.com/docs/generation/models-and-workflows.md) - [Generate images and video](https://flashboards.yaroflasher.com/docs/generation/generate.md)