Activation Modes: As-You-Type by Default, Hotkey on Demand

By default, Lightning Assist fires your snippets the moment you finish typing them — no hotkey, no extra key press. You type your trigger — any short text you choose, like ;meeting or addr — and the expansion happens inline as you type. A leading character like ; is optional: it just keeps your trigger distinct from words you type normally. If you'd rather have an explicit trigger, switch to Hotkey Mode in one click. Either way, you stay in full control.

Part of the Lightning Assist text expander — the cross-platform productivity app for Windows, macOS, and Linux.

How Your Snippets Fire — Default and Optional

Lightning Assist ships with As-You-Type Mode (also called Inline mode) turned on by default, because most people want the fastest possible flow. Hotkey Mode is available as an optional alternative if you want every expansion to require a deliberate key press. You can switch between them any time in the app's settings, and your choice syncs across devices.

Default — As-You-Type Mode (Inline)

Type your trigger — the exact text you chose for the snippet, such as ;meeting or addr. Lightning Assist recognises it and replaces it inline with your snippet text. No hotkey, no menu, no extra step. Your trigger is whatever you set when you create the snippet — a plain word, or one with a leading character like ; or / to keep it distinct from ordinary writing; it's your choice, not a fixed setting. By default the expansion is instant — the snippet fires the moment you finish typing the trigger. If your triggers are sometimes real words you also type, give them a distinctive leading character so they only fire when you mean them to.

Why we made this the default: typing your trigger costs you zero hand movement and zero context switch. Compared to reaching for a hotkey, it's measurably faster across long writing sessions — and choosing a distinctive trigger (for example one with a leading ;) all but eliminates the risk of an accidental expansion in normal prose.

Optional — Hotkey Mode (Trigger-based)

Type your snippet key (for example, meeting), then press a hotkey (such as Ctrl+Space or any combination you assign) to fire the expansion. Nothing happens until you press the hotkey. Best if you want an unambiguous, deliberate trigger — for example if your snippet keys are real words you also type as regular text, or if you prefer your hands to confirm every expansion. Hotkeys are fully customizable, including per-feature hotkeys for AI commands, voice-to-text, and the Quick Access window.

Two expansion styles inside As-You-Type Mode

  • Instant (default) — the snippet fires the moment you finish typing the trigger. Zero delay. Ideal when your triggers are unique tokens that never appear in normal writing (e.g. ;meeting, ;sig, ;reply).
  • After-space (optional space delimiter) — the snippet waits until you press the space bar before it fires. This way the space character itself is the activator, which is helpful if you want a small "commit" step before every expansion, or if your snippet keys sometimes appear inside longer typed words.

How to switch modes or styles

Open Lightning Assist → Settings → Activation Mode. Pick As-You-Type (default) or Hotkey. Your choice is remembered per account and syncs across devices.

Privacy note: both modes do all matching locally on your device. Your keystrokes never leave your computer and are never transmitted to our servers or any third party — see the Privacy Policy for full details.

What are Triggers?

Triggers are the signals that tell Lightning Assist to fire a snippet. In the default As-You-Type Mode the trigger is the text you type — the exact abbreviation you set for the snippet, such as ;sig or addr. In the optional Hotkey Mode the trigger is a keyboard shortcut you press after typing the snippet's abbreviation. Both flows are fully customizable.

Triggers can be customized to match your preferences and workflow. You can set different triggers for different features, or use the same trigger for multiple features.

Types of Triggers

  • Text Expansion Trigger: In the default As-You-Type Mode, snippets expand inline the moment you finish typing the trigger (e.g. ;sig) — no key to press. The Text Expansion Trigger key applies only in the optional Hotkey Mode: there you type the snippet's abbreviation, then press this key to expand it.
  • AI Command Trigger: Activate AI commands with a custom hotkey. Select text and press the trigger to open AI command options.
  • Quick Access Trigger: Fixed at Alt + C (or ⌥ + C on macOS). Opens the Quick Access Window.
  • Speech-to-Text Trigger: Push-to-talk key for speech-to-text: Ctrl + Window Key on Windows; Ctrl + Cmd on macOS.

How to Configure Triggers

  1. Go to Triggers Page - Open Lightning Assist and navigate to the "Triggers" page in the settings or main menu.
  2. Select Feature - Choose the feature you want to configure a trigger for (text expansion, AI commands, etc.).
  3. Set Hotkey - Click on the trigger field and press your desired key combination. The trigger will be saved automatically.
  4. Enable/Disable - Use the checkbox associated with each trigger to enable or disable it. Disabled triggers won't activate their features.
  5. Test Trigger - Test your trigger to ensure it works correctly and doesn't conflict with other applications.

Common Trigger Configurations

Text Expansion

Common triggers: Tab, Space, Enter, or custom combinations like Ctrl+Space. Choose a key that's comfortable and doesn't conflict with your workflow.

AI Commands

Custom hotkeys like Ctrl+Shift+A or Alt+A work well for AI commands. Choose something memorable and easy to press.

Speech-to-Text

Default is Ctrl + Window Key on Windows; Ctrl + Cmd on macOS (hold to record, release to transcribe). Can be customized to other keys if needed.

Quick Access

Fixed at Alt+C (or ⌥ + C on macOS) and cannot be customized. This ensures consistency across all installations.

Best Practices for Triggers

  • Choose Comfortable Keys: Select triggers that are easy to reach and comfortable to press frequently.
  • Avoid Conflicts: Make sure your triggers don't conflict with other applications or system shortcuts.
  • Use Modifier Keys: Modifier keys (Ctrl, Alt, Shift) help prevent accidental triggers in normal typing.
  • Test Thoroughly: Test your triggers in different applications to ensure they work correctly everywhere.
  • Keep It Simple: Simple, memorable triggers are better than complex combinations that are hard to remember.

Troubleshooting Triggers

Trigger Not Working

If your trigger isn't working, check that it's enabled in the Triggers page (look for the checkbox associated with it). Also verify that Lightning Assist is running and the trigger isn't conflicting with another application.

Conflicts with Other Apps

If your trigger conflicts with another application, try a different key combination. Modifier keys (Ctrl, Alt, Shift) often help avoid conflicts.

Trigger Works in Some Apps But Not Others

Some applications may capture certain keys before Lightning Assist can process them. Try a different trigger key or check the application's keyboard shortcut settings.

Configure Your Triggers

Triggers are fully customizable in Lightning Assist. Start your free trial and configure your perfect keyboard shortcuts.

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Frequently Asked Questions

What's the default — do my snippets expand automatically, or do I need a hotkey?

By default, snippets expand automatically. Lightning Assist ships with As-You-Type Mode (also called Inline mode) turned on, so you just type your trigger — for example ;meeting — and the expansion fires inline, with no hotkey press. Your trigger is whatever text you set for the snippet; a leading character like ; is optional and simply keeps it distinct from ordinary words. If you'd prefer an explicit trigger, you can switch to Hotkey Mode any time in Settings → Activation Mode and the same snippets will then expand only when you press your assigned hotkey.

What's the difference between Instant and After-space expansion?

These are two styles inside the default As-You-Type Mode. Instant (the default) fires the snippet the moment you finish typing the trigger, with zero delay. After-space is an optional space delimiter — the snippet waits until you press the space bar before it fires, so the space character itself becomes the activator. Pick After-space if your triggers are real words that sometimes appear inside longer text you type; pick Instant if your triggers are unique tokens like ;sig or ;reply that never collide with normal writing.

Is As-You-Type Mode safe? Does it send my keystrokes anywhere?

Yes, it's safe and local-only. All pattern detection runs entirely on your device, and your keystrokes are never transmitted to any server or third party. To power phrase discoveries, the app can count phrases you retype — that count lives only on your computer, is never sent anywhere, and turns off together with the suggestions setting (see the Privacy Policy for details). The only related information our servers store is your chosen activation mode, saved with your account settings.

Can I use the same trigger for multiple features?

No, each feature needs its own unique trigger. However, you can use similar triggers (e.g., Tab for text expansion and Shift+Tab for AI commands).

Why can't I customize the Quick Access trigger?

Quick Access is fixed at Alt+C to ensure consistency across all installations and prevent conflicts. This is a design decision to maintain reliability.

How do I enable or disable a trigger?

Go to the Triggers page and use the checkbox associated with each trigger to enable or disable it. Disabled triggers won't activate their features.

Can I use function keys as triggers?

Yes, function keys (F1-F12) can be used as triggers, though they may conflict with system shortcuts in some applications.

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