Well, i would like to do this:
i have an house name X, 5 rooms. put house name x in cell, and 5 in an other.
when press save, it create a table:house x /room1, House x /room2, house x /room3, House x/ room4, House x/ room.
ID room 1,2,3,4,5
then i enter a new house:
name Y, 2 rooms. put house name x in same cell as before , and 2 in same cell as before.
when press save, it update the existing a table with:house Y /room1, House Y /room2.
ID room 6,7.
and so on .
not sure if this make sens.
Cheers