I would like to thank you for your support. Rest assured you are not missing something obvious. The current method you are using to set your schedule, + and - buttons, is the only setting.
One possible suggestion when setting up the experimental schedule is to run that zone manually and take advantage of the dial control to cycle through times. This way you can determine the ideal time a bit faster.
I appreciate the suggestion for more efficient controls with regards to the timing mechanism. I will pass this along to our development team for a future iteration.
We are always of looking for ways to improve and suggestions like yours go a long way to that. Thank you for reaching out to the community! Have a great weekend!