sigh...I cant not locate where can I edit

I only found the reason why these happened
Although i always edit the apartment lot and family info. to tell the game, this apartmentsublot is belong to that family
Yes...they are in the sublot when game start, but I found they havn't rent it yet!
If they rent the apartment after your enter the lot, all invisible furniture will be gone!
but if you order a sims go out from this lot to load a public lot and then return and rent it
the problem is sorted

but family money is reduced and all action are recorded
But I dont want to do everything on the raw save of the family...

I already fix the problem of the missing families in apartment
they are playable, just their apartment furniture become invisible when I play it,
sims can use it, but you cant click it and see it

you can see the furniture of other family if you visit them
but when you play that family, the furniture also become invisible

so now i am trying to fix this problem
just this problem left now

I dont understand? Why we have to do this?
Because the furniture are still invisible after correct the data?
I try to make all data correct, but I cannot see their furniture, but sims can use it
and goto another apartment (for example family B), can see all of their furniture.
But when I use family B, their furniture invisible now!

O...so now still can't merge Belladonna Cove into suburb?

And also, i cant make turtorial neighbourhood to become a suburb, i already add ID number and Catalog Description, name is not tutorial
but I cannot add it in game