RR Mega Prop Pack: I can't find a button for them to plop signs etc. Please help or tears will fall!

[SorryImLate 19]

I cannot figure out how to use the rr mega prop pack. Can you point me in the right direction? I don't know what to ask to help you guys figure out what my problem is so let me know what you need and Ill answer asap. Im incredibly frustrated. Also I cannot get the cars mod to work either. I have a bunch of other mods without any issue. So I dont get whats up. 

 

Please help! Thanks bunches !!!!!

[jeffryfisher 2,176]

Props are elements referenced by lots, so a prop pack is a file that satisfies dependencies for other mods. Find mods that give you lots, then place the lots (or wait for growables to grow). The props will appear on the lots where the lot designers called for them.

[SorryImLate 19]

Got it. What about getting a mod that allows me to plop street signs? 

 

That makes a lot of sense now.. Also why my cars are the same on the road so I took a closer look at my parking lots and that's where they seem to show up too. 

Thanks bunches!

[matias93 7,535]

@MandelSoft
did several of those, you should check his profile