I hope this is the right place for this, since it is not anything wrong with the game I didn't go to the help section. This is just a little niggle I've had for some time now. I have one or two old lots in my library which I created in-game ages ago, had sims living in for a while then moved them elsewhere. Then I saved the lots to the library in case I should want them again. Unfortunately I neglected to move their personal effects to the sim's inventories. Everything else will delete, except for certificates. In one case the wall is covered in them. The game wont let me delete them either in build or buy mode. Anybody know a way around this?

With testingcheatsenabled on, Shift + Click and you will see an option to remove them. Or you could also use Master Controller.

Ah, yes! Thank you Sim mania.