Hi whosypot,
I appreciate you reaching out regarding your Samsung - 6.3 cu. ft. Freestanding Electric Range with WiFi, No-Preheat Air Fry & Convection preheating the oven. Regarding your concern, we have the timed cooking which you can use. Usually, it takes 15 minutes however this depends on what you will be cooking. I will be sharing your user manual. Please go to pages 30 to 40.
https://downloadcenter.samsung.com/content/UM/202112/20211214153925301/NE63A6711_AA-01_EN-MES-CFR_210901.pdf
Also, I will be sharing a link in case you are encountering an issue with pre-heating the oven.
https://www.samsung.com/us/support/troubleshooting/TSG01204529/
Should you need more assistance, please feel free to get back to us via the following options:
1. Facebook Messenger: http://m.me/samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513
3. Samsung Community: https://us.community.samsung.com/t5/Samsung-Community/ct-p/us
Thank you for being a valued customer of Samsung. Have a great day.
Reference Ticket Number: 1144187232
^Camille