fairly new to unreal engine and was wondering if i could save eg. a set of stairs i have made with in unreal engine 4 into an object or a prob etc for use later ? Thanks
Did you make them as a BSP? If so, then it’s very possible. In fact I’ve written a tutorial on it:
Once you’re ready to convert a BSP into a Static Mesh (Or a set of BSPs), highlight it / them in your scene and then look at the details panel on the right-hand side of your screen (Default location).
If you’ve selected the BSP(s) correctly, You’ll see categories such as “Brush Settings” .etc
To turn this BSP into a Static Mesh, you’ll have to find the “Hidden” options in the details pane.
Look just underneath the “Hollow” and “Tessellated” options. See it now? That tiny, tiny arrow pointing down?
Click it and the “Hidden” options will reveal themselves like the thieves hideout in Aladdin.
Once you see the hidden options, you’ll see the button we’ve been after: “Create Static Mesh”!
It will ask you where you want to put the Static Mesh (In the “Content Browser”) and what you want to name it.
Simply call it what you want and pick a folder, then the BSPs will be converted into a Static Mesh!
You’ll notice that once converted… Your old BSPs have gone all grey. Not only that but it says “Invalid Lightmap Settings” all over it. Don’t panic - This is normal. This always happens when you convert a BSP to a Static Mesh.
Why? - It happens because when the engine converts a BSP to a static mesh, it sets the “Lightmap Resolution” to 0.
What is a lightmap? A lightmap holds all the data to with… You guessed it, lighting. All of the how shadows work on the object as well as diffuse interreflection are all data that the lightmap contains.
Unreal Engine 4 - Being the sexy powerhouse that it is, calculates all of the lightmaps and such for us, saving us time and companies money.
However when bringing a BSP into the world of a Static Mesh, it doesn’t know how detailed you want this lightmap. We don’t need that much detail (Less is more performance!) but we still need some.
So we’re going to set our Lightmass setting for the Static Mesh now.
Head over to your “Content Browser” and into your folder and double-click your Static Mesh to open up the Static Mesh editor.
While in your Static Mesh editor, do you see the details panel on the right? Head over there now and scroll down to the section called: “Static Mesh Settings”.
While looking at the “Static Mesh Settings” (In the “Details” panel INSIDE the “Static Mesh Editor”) Do you see the option called “Light Map Resolution” with a “0” value next to it? That’s the number we have to change!
For the sake of the tutorial, put 512 in there. Normally, we’d mess around and try and get the best lowest number (To save on performance), but as we’re learning what everything does, 512 will do fine for our adventure.
Go ahead and replace the “0” with “512” now.
Once you’ve changed the value, be sure to “Save” (Using the floppy disc button on the top-left of the “Static Mesh Editor”). Once saved, you can close down the “Static Mesh Editor” and you’ll see we are no longer plagued with “Invalid Lightmap Settings” all over our Static Mesh!
Hope this helps! 
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Wow thanks heaps! Thats exactly what i needed 
Legend!
ok this is what i have …i know its simple dont laugh haha i have grouped all of the pieces but not sure whats next dont know what you mean by BSB? i can follow the rest of tut easy just cant figure out this BSB deal
Under the brush settings you have to click on “create static mesh”. After that you can save it in the content browser.
BSP -> geometry in the ue4 -> not a static mesh 
@jdkper: On the right is category called Brush Settings … currently it has Brush Type, Brush Shape, etc.
There is an arrow pointing down below the Tessellated check-box … click the arrow … this will expand the Brush Settings group and you should find the option to Create Static Mesh in that expanded section.
Sorry … not in front of my dev machine … so I can give you a screenshot to help. HTH. 8-}
Thank you all, i have figured it out now
Glad I could help!