Is it possible to change the html structure of elements?

Hi folks!

Is it possible to change the html structure of elements, that I downloaded from the visualcomposer hub? (developer license). I want to place arrows and project titles outside the slick-list in the element “posts slider”. of course it would save time if i don’t have to write a new element for these small changes. Is there a way to clone the element locally, modify it and then upload it as custom element?

thank you for your answer and maybe a short explanation.
kind regards,
Axel