How to setting cron job with custom cron parser

Hi, i use the Drone to build my project, and i want to build my project at 10:00 pm every day. I know the Drone have the cron jobs, but this feature could’t support the custom cron parser in UI.

I read this How to use cron scheduling in drone 1.0.0-rc.1 document, but i can’t find the Cron Job Expression in my cron job UI.

Could i set the custom cron parser with CLI? or Drone not support this feature?