# Timeline This document explains how to use Premiere Pro's timeline preview and control features on the Flexbar. ## In the FlexDesigner You can find this feature under the "Adobe" category in the Key Library. ![1743306979328](image/timeline/1743306979328.png) - **Application**: Currently supported only in Premiere Pro. - **Mode**: Choose between Timeline Mode and Thumbnail Mode. - Thumbnail Mode requires rendering via Adobe Media Encoder, which may impact performance. ## On the Flexbar - **Timeline Mode**: Allows you to preview and scrub through the timeline. ![1743307039513](image/timeline/1743307039513.png) - **Thumbnail Mode**: Lets you preview each segment with a thumbnail. Scrubbing shows more precise previews. ![1743307100773](image/timeline/1743307100773.png)