How to creat groups for scheduling

Hi All, I have recently installed some Eufy Cams, 4 x Eufycam 3 internal, and 3 x Eufycam external with the solar panel. I would like to have the schedule for the internal cams different to the external, but I cant figure out how. As the external cams have the solar panel, I can leave the motion detection and recording on all day, but the internal cams best to only have motion detection and recording for late night hours. Can I please ask for some advice on how to best do this. Thanks in advance