Recorded in: Autodesk Flame 2018.3 Update
In the Flame 2018.3 Update, the interface is no longer locked out when it comes to the sliders in multiple effects. This means that as your media is playing back in the timeline viewer or viewports, you are able to adjust the values and see the updates in real-time as the frames play back.
So you could start tweaking an effect or a grade to rough out the look and than refine it further when needed.
This works in the Timeline, TimelineFX editor and Batch. Playback will depend on your system's performance and hard specifications.
As a tip, you can also animate the values during playback for added effect.