Timer with and without preset cycle

I have 2 nodemcu’s running V11 (375 and 946 pixels), they are synced. They start /stop on 0800/0830 and 1600/2200. During this they cycle through presets 1-16. (cycle checkbox is checked) Preset 17 and 18 are T=1 and T=0 (start/stop) and included in the timers. So far so good everything works fine.

The challange
During the day I want 1 segment running 1 (or multiple in a different cycle) presetm then on the above times. As I am doing it, it is the one or the other. (during the day de cycle through preset checkbox needs to be empty, but on the above mentioned times it needs to be checked.

How can above requirement be met?

WIth kind regards from Zwolle, The Netherlands,

Erik-Jan