From the source
Runway released new features including Motion Brush, Style Presets, an updated Director Mode, and an improved image model for its Gen-2 platform, aiming to give users more control over video generation.
From the source
From the source

Runway released new features including Motion Brush, Style Presets, an updated Director Mode, and an improved image model for its Gen-2 platform, aiming to give users more control over video generation.
From the source
Motion Brush is now available for use in Gen-2 Image to Video mode.
runway.com