How can I allow building on top of a custom cube in UEFN?

[Zim_TechArt]

Hello Rise,

Please try the following steps.

1. Create a box via modeling mode in UEFN.
   
   
2. Added Simple collision; note that these are the default collision presets.
   
   
   
   
   
3. Create a Blueprint class based on Building Prop from the common section.
   
   
4. Assign our new box as the static mesh for the blueprint
5. In our blueprint class, set “Is Player Buildable” to True
   
   
6. Set “Structurally Support Overlapping Actors” to True
   
   
7. Set “Do Not Block Building” to True
   
   
8. Now place your new Blueprint in the level.
   
   
9. Now test
   
   

Please try the following steps and see if that helps.

Thanks