Session / duplicate objects

Hey guys. Here I will show you briefly how you can duplicate some objects. first you choose an object (I recommend the first object in each category) use only the X key (place mode), go to another object (world objects) and press the X key again. Change the category (from left to right) and press the X button again. You can duplicate several objects in the same category. This only works from top to bottom.

[johnspires]

Yes thanks I been trying to figure this out.

[blakkoutentertainment]

Thanks for the tip! But no manny pad duplicate ? How'd you make the skatepark layered?

[mattsmith.]

Have you been able to get any other objects to work?