Security on firebase

[moh1122]

Hello
I really like your project well done but how can I add the below, im getting it when running the app.
Consider adding ".indexOn": "roomType" at /ChatRooms to your security rules for better performance

[moh1122]

Can you please help me to view the friends, they are not showing now until i write the full name and press search

[moh1122]

I want them to show directly