You should be able to hold down the OK button (big circle button on the bottom of the screen) for 3-5 seconds and the numbers should switch from shuffled to sequential order. The numbers will show 123 456 789 etc. Holding it down again for 3-5 seconds to go back to PIN Genie mode where the numbers are shuffled. This is for locks not paired with the mobile app.
If your lock is paired with the mobile app, you will need to open the app within Bluetooth range, select the lock that you want to change the settings for, got to Settings in the lower right-hand corner and select Random Mode to enable or disable this function.