LightMap Tools will be helpful for you if you use baked lights but you don’t have a render farm to build.
It allows you to build lights only for the selected level part you are working on.
By setting other actors Lightmap Resolution to 1 it drastically decreases build time.
This way you can quickly iterate and see the result without the need to rebake the entire level.
We just added a new box selection mode to the Lightmap tools.
In this mode you can use a box (brush, volume, triggerbase, etc) as the selector for meshes, so every mesh that is inside the box can be selected.
This is very useful if you have some volume that engulfs an area and you only want to select meshes from inside that volume.
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