Indoor camera C24 - automation

I have my indoor my indoor camera C24 installed, and I have 1 door sensor, 1 eufy cam 2C and 1 eufy doorbell connected with my Homebase 2.
I can create automation to trigger doorbell / cam 2C / Homebase alarm by door sensor or other ways, but the indoor cam C24 cannot join the automation as it doesn’t need to connect thu Homebase 2.
Is there anyway to connect them to form a security group? otherwise, what’s the point to buy eufy products to work as a total security system?