Importing FBX into Blender with correct scale - how?

I need to model something over existing scene. What settings to I need to use in order for me import FBX from UE4 into Blender with 1:1 scale (so that when I model and export a static mesh for UE4, it imports into UE4 as-is and matches existing scene perfectly) ?

Thanks

try this https://youtu.be/LuII49XHnVk?list=PLXWXR2pLy_hV6UwhLjirhNnelWpOzGWRI