How to set multiple daily Screen Time downtime periods for a child?

Hi team,

i have iphone and i created family. In the child profile - screen time - downtime. Custom days is very confusing- i have asd kid -downtime need to be set multiple times in a day. I want to give him ipad like below

Mon 10-11am and then 2-3pm

tue 8-9am and 3-4pm

etc

but in custom days it is nightmare - we have to set it again and again and if we sometime forget then child can have ipad for much longer. This can be modified?