Open your Character Blueprint. Under Class Defaults, ensure your Character uses the R5 Character Movement Component.

In your Event Graph, bind your Crouch key (e.g. Left Ctrl or 'C'):

• On Pressed: Call Start Slide if moving fast, or standard Crouch if walking.
• On Released: Call Stop Slide.

Select the Movement Component. In the Details panel under R5 Movement > Wall Run, ensure bEnableWallRunning is checked.

Press Play. Sprint towards a flat wall, jump, and look slightly along the surface. Your character will automatically attach and begin wall running!