Just that really.
We're taking him to the funeral but wondered whether to let him see the body the day before. Apparently she's nicely laid out. I know I found it helpful as an 11 year old to see a dead relative but I don't know if 6 is too young.
We're very open about death and what's happened so my inclination is to give him the option and let him choose. They weren't super close.
I know it's totally different but he saw our dog after he died and decorated the coffin and I think that helped him grieve.