Scale or opacity ramps on the selected clip
The editor selects the target clip and the type of transform to apply.
Editable Premiere Pro keyframes
Add editable keyframes to a Premiere Pro clip
Transform Builder applies a chosen scale or opacity ramp to the selected clip in one click. The generated keyframe curves stay editable, so the automation creates a starting point rather than baking in a finished animation.
What is Transform Builder?
Millow Transform Builder is a Premiere Pro keyframe plugin for selected clips. Choose a scale or opacity ramp, apply it in one click, and continue editing the resulting keyframe curves by hand. It supports 16-to-128-frame durations plus Quick Zoom, Infinity Zoom and Reverse Zoom actions.
Capabilities
Built for a specific editing job
Durations from 16 to 128 frames
Choose a documented duration within the supported range before applying the keyframes.
Quick Zoom, Infinity Zoom and Reverse Zoom
Apply one of the named transform actions to the selected clip rather than asking the tool to choose a creative moment.
Keeps the clip's existing opacity at the first keyframe
An opacity ramp begins from the clip’s current opacity value instead of silently replacing the starting state.
Curve Editor: 16 easing presets, from Linear through Overshoot to Bounce and Elastic
The generated curves remain available for normal manual adjustment after the one-click setup.
Reshapes a segment of keyframes the clip already has
The generated curves remain available for normal manual adjustment after the one-click setup.
Everything lands as ordinary keyframes you can still move by hand
The generated curves remain available for normal manual adjustment after the one-click setup.
Workflow
From active timeline to a reviewable result
- 01
Select the clip
Choose the exact Premiere Pro clip that should receive the transform keyframes.
- 02
Choose the ramp
Select scale or opacity, an available action, and a duration from 16 to 128 frames.
- 03
Apply the keyframes
Create the starting curve with one action on the selected clip.
- 04
Finish by hand
Refine the editable curve and timing in Premiere Pro to fit the edit.
Best fit
Where Transform Builder fits
- Adding a repeatable zoom starting point to selected clips
- Creating editable opacity ramps without manually placing every initial keyframe
- Keeping the final timing and curve under the editor’s control
Direct answers
Questions about Transform Builder
Does Transform Builder create editable Premiere Pro keyframes?
Yes. The generated scale or opacity curves remain editable; the result is not baked in.
Does AI choose when to add a zoom?
No such behavior is documented. The workflow is selected clip, chosen action, one-click keyframes, then manual refinement.
Which keyframe durations are supported?
The verified product catalogue documents durations from 16 to 128 frames.
Can it create opacity keyframes?
Yes. Transform Builder supports opacity ramps and preserves the clip’s existing opacity at the first keyframe.