Hi @Max_Michaels , the bookmarklet works for me to collapse all sections.
To expand sections, we need to change DownTriangleIcon to RightTriangleIcon.
If we want to collapse and expand all sections with one bookmarklet, use conditional branching like this:
javascript:(function(){
const firstButtonIcon = document.querySelector('.TaskGroupHeader-toggleButton .Icon');
if (!firstButtonIcon) return;
const firstTriangleClassName = firstButtonIcon.classList.contains('DownTriangleIcon')? 'DownTriangleIcon': 'RightTriangleIcon';
document.querySelectorAll(`.TaskGroupHeader-toggleButton .${firstTriangleClassName}`).forEach(buttonIcon => buttonIcon.parentNode.click());
})();
Editing the bookmarklet:
Update in July 2022: I created Introduction to Asana bookmarklets to discuss more about bookmarklets and show more examples.