How to group 2 or more buttons together

I’m using a nodemcu and 8 channel relay module to control 5 lights and 2 fans in my drawing room.
Is there a way to group all the lights to one single button? So when I press that button all 5 light comes on at the same time instead of turning on each light separately.
I don’t think this feature is available in blynk yet. Please add it if possible.

I’d like to control each light separately when needed and together when necessary.
Also it’d be great if this could all be linked to my Google assistant through ifttt like single buttons can be linked right now.

6 posts were merged into an existing topic: Group 2 or more buttons together