Changing question from "Select One" to "Select Many"

I entered a question using “Select One” type question. Is there a way i can change it to “Select Many” without having to re-enter the question again.

thank you in advance.

Welcome back to the community, @l.pomana! Kindly please be informed that changing a question type from select_one to select_multiple is not possible through the form builder UI. However, you could do the same if you download your survey project as an xlsform and then make changes and redeploy them back to the existing survey project.