Library management: delete question, how to categorize

Found where to do this! Sorry for the inconvenience. Can be removed.

Hi all,

Fairly new to KoBo so appreciate any help. I searched through the help topics but was unable to find answers to some questions:

How do I delete questions from the library of saved questions?

How do I “tag” a question with a topic or make a collection from within KoBo on a browser?

Thank you.