This would be possible with Bricksforge 0.9.3, but even better with the coming 0.9.4. Then you can use the “From To” method, which would make things easier here. In the current version, only “To” and “From” are available.
For now, you have two possibilities:
Create a timeline with multiple “To”-Methods, selecting .heading-word:nth-child(n) as trigger to create your animations for each text element in the row
Easier: Just add an “Code” element to the builder canvas, including your gsap code in a “DOMContentLoaded” event listener. Gsap will be available there. And your code will work as expected.
With 0.9.4, you’ll be able create this functionality very easily inside the panel.