Rename/remove reusable sections

I need to remove (or rename) some of the Reusable Sections I saved in Colibri WP, but I don’t see how to edit from the list. The only way I know to access a list of these sections is to click on the + to add a predefined block and scroll to my Reusable Sections. If there’s another/editable list somewhere, I’d like to know! Thank you in advance!