Step 1 Installation

Step 1: Installation

1. Install the plugin

• From Fab: add OptiKit to your engine or project through the launcher, then enable it under Edit → Plugins → Installed → OptiKit and restart the editor.
• Manual: copy the OptiKit folder into <YourProject>/Plugins/ and restart.

C++ is not required in your project - the plugin compiles on its own.

2. Activate Enhanced Input (one-time, for the Controls tab)

On UE 5.0 enabling the Enhanced Input plugin does not switch the project's input classes, which silently disables all rebinding. Add to Config/DefaultInput.ini:

[/Script/Engine.InputSettings]
DefaultPlayerInputClass=/Script/EnhancedInput.EnhancedPlayerInput
DefaultInputComponentClass=/Script/EnhancedInput.EnhancedInputComponent

(Also editable under Project Settings → Input → Default Classes.) OptiKit logs a warning at game start and in the catalog check while this is unset. The shipped demo runs its own Enhanced Input objects, so it works either way.

3. Packaging note

If your project cooks specific maps only, add /OptiKit to Project Settings → Packaging → Additional Asset Directories to Cook - otherwise the catalog and theme assets are dropped and the menu ships empty. The catalog check reminds you about this.

Blueprint-only projects with a manual install: when the plugin sits in <YourProject>/Plugins/, set Project Settings > Packaging > Build to Always (or add any empty C++ class to the project). Otherwise packaging stages the stock game executable without the plugin's C++ modules and the packaged game refuses to start. Engine installs from Fab are not affected.

4. Try the demo

Open /OptiKit/Demo/DemoMap (enable Show Plugin Content in the content browser filter) and press Play:

• M or the gamepad View/Select button opens the menu and pauses the game; Escape / gamepad B / the Cancel button closes it.
• The pawn flies with the demo bindings; Jump hops, Fire reverses a showcase cube's spin, Interact pauses the nearest one - rebind them and the new keys work instantly.
• Video.FieldOfView drives the demo camera through the delegate applier - the live example of Step 6.
• Each sound emitter plays a Cue_Ok* cue routed to its channel's sound class: drop a Wave Player into a cue and the matching volume slider drives it.

Validate anytime

Tools → OptiKit → Check Settings Catalog flags duplicate ids, dead console variables, missing theme classes and project-configuration issues. Also available headless: -run=OkCatalogCheck (exit code 1 on problems).

Next: Step 2: Opening the Menu