If you are classified under "Active UPM Faculty Members", you are automatically eligible for Slido access. Just follow the login procedure here: https://bit.ly/SlidoLoginUPMailSSO. Otherwise, email email@example.com and state that you cannot access Slido.
If you have technical concerns, please contact the UP System IT at https://ictsupport.up.edu.ph/
You may watch the tutorial videos: https://www.sli.do/videos.