No problem.
All this is possible… there is some work to do.
For your powder room and your bathroom using the door as the trigger can be unreliable because sometimes you close the toilet door and your not even using it. You are also trying to turn it ON when the door is closed and turn OFF when the door is close 
. Good thing is I have a solution for you. What you need to do is create a template sensor I call " 
Bee In The Hive “. This works with your motion sensor and your door sensor. If the door is closed and motion is detected it knows the bee in in the hive and turn ON, nice hay 
. I have a post in my sensor light blueprint on template sensors but it will work perfectly for this Click Here. Once you create the template sensor " Bee In The Hive ” use this for your toilet trigger and your sensor light group your motion sensor and " Bee In The Hive " for the trigger, then you will not need a by-apss in the sensor light.
Have a look at my set up Click Here.
You will not need this once you create " Bee In The Hive “. Here is my settings… for me when the light is on for 2 min the fan will come on and when I turn the light OFF the time delay starts. If the light is ON for les then 2 min the fan will not come on. Rather than the light as the trigger use then " Bee In The Hive ”.
Hope this helps you… let us know how you get on.
Blacky 