I live on the third floor in an appartment building. Should I use the front door of my SUITE or the front door of the WHOLE BUILDING as the front door with the program?

Also, should I somehow lead Qi up the staircase to our door or just work with my own appartment? I can't really go about changing things too much in the common areas such as the staircase but of course I can make some suggestions.

On the roll,
Sakke