Of course, this depends on how much rice the individual head likes to eat. If you calculate 120 g of rice per person, you will get rice for about 10 to 12 people with this multifunctional cooker. For 200 g of rice, you should allow 1 litre of water. The cooker has a volume of just over 6 litres. So you can cook 1.2 kg of rice.
Unfortunately, mine didn't contain a recipe book.
I took this one and printed it:
https://www.breville.com/content/dam/breville/au/assets/miscellaneous/recipe-cards/BPR700_fastslowproebook.pdf
It is very useful.
Unfortunately, I couldn't find the temperature range either, but since the "keep warm" function works at 60°C, setting 40°C is certainly no problem...
https://gzhls.at/blob/ldb/b/2/8/1/0a5e7181f3d2e965f491f34e33c17ef5064d.pdf