Dear customer,
if you want to run it 2 days, you can create two one-time run in Settings->Programs.
You can go to Settings->Programs to delete the programs. If you want to cancel a future run, you can go to the Schedule page, select the day and skip the user programs.
If you do not want any watering for a period of time in the future, you can put the controller in standby mode by toggling the Enabled button on the home page.
Thanks,
Wency
Netro Support