No manual or instructions

Question

bought at garage sale a Panasonic keep warm rice cooker/steamer modle SR 118EGH. Have no idea how to use it as I have never used a steamer. Need manual on how to run machine what features it has, how much water to how much rice, suppose to do vegtables also how do you do it and how much water. This is an older steamer so don't know if anyone can help me.