see also Allmenus
This cheat is powerful. However it can be dangerous to use it too much. It seems to destabilise your game if you leave it on, so make sure you turn it off as soon as you have finished using it.
It does more than I have detailed here and is worth exploring.
At the neighbourhood screen, open up the cheat window and type
boolprop testingcheatsenabled true and hit Enter.
Click on the lot you want to go into and enter it normally. You will receive one or multiple error pop-up messages with several options.
(I like to take screenshots of the messages.)
Click on the Delete option each time and the lot will continue loading. This deletes the problematic objects from the lot. (Not from the game!)
At this point, save the game and exit to the Neighbourhood. You can then reload the lot without error messages.
Turn the cheat back off with the boolprop testingcheatsenabled false command.
Don't select the Force Error option.
Then shift and click on
boolprop testingcheatsenabled false turns it off.
As long as you have "room" in your household you can control visiting Sims just like regular "household" Sims. With boolprop testingcheatsenabled true on,
Click on the "visiting Sim", choose make selectable and the visiting
Sim will then
appear in your household roster.
They then become for most purposes, a member of your household.
This works for playable Sims and for NPCs; even for babies. For babies, select as above, then unselect them and then reselect them again to make them appear permanently in the family line-up. This way you can check their needs and relationship scores at a glance.
BUTthese visitors do not count as family adults for purposes of caring for children. You will still need a nanny, or you may be visited by Social Services...
If you're playing on a University campus, newspapers are not automatically delivered. So you'll have to do the following to get a paper:
Open the cheat box.
Turn on boolprop testingcheatsenabled.
Click the Mailbox.
Select Create NPC
Select Deliver Newspaper
Soon the newspaper will be delivered.
The two Sims concerned should be on the Lot.
Warning: Sim males can become pregnant as well as females. The Sim selected when you click on the Tombstone is the one who will be pregnant!
enable the cheat "boolprop testingcheatsenabled true" hold down the shift button and click on the Sims. then click spawn then Sim Modder. A statue of a baby will appear next to the Sim. Click on the baby, and then Wants and Fears then Lifetime and on the left you will be able to roll ANY lifetime want for any aspiration. on the right you will be able to roll LTW for just that aspiration. Keep doing it until you get the LTW you want.
SHIFT-CLICK on the Sim
Add to Secret Society (University Only): Young Adult Sims at college will instantly become members of the Secret Society. Will not be taken away in the limo or instantly be friends with any members.
The first time I did this the Sim froze and had to be deleted using move_objects on.
This is a sophisticated cheat available for those comfortable with using the One Cheat, particularly good for story makers.
<AnyBoolean key="testingCheatsEnabled" type="0xcba908e1">true</AnyBoolean>
For most gameplay I would keep allmenus turned off, but there are times in every story maker's progress when they need a different animation to happen...
What this does - it allows all interactions possible on a Sim to be visible in pie-chart form. Some of the actions that are now selectable do not make sense and simply will not happen - telling a Sim to talk to another's baby when they are not pregnant, for instance. Some will bring up error messages. But you can use the aspiration failure dialogues, for instance.
See also http://www.sims99.com/wiki/Sims_2_Hidden_Cheats