Transperant background | ToonBoom Harmony Essentials

Hello! I use Toon Boom Harmony Essentials and I’m having some trouble with exporting movies with a transparent background, I have an animated character that I want a transparent background for to then export it onto another stage but every time I export it, it shows a black background, any help would be lovely!

Change the write note to be png4 and export write note the sequence, or change the export movie setting to be millions of colors +

Thank you so much!