Entities are active objects like enemies and decorations.

They are shown at "Entities" tab.

You can place them the same way as you place tiles or objects however only one entity or object can be placed in a single cell.

In newer Dev builds of the engine, you can now place objects (decorations) in BUILD mode. Build mode is activated through the console command by typing ~ then BUILD. This allows you to place decorations outside of the normal grid, which gives you increased flexibility with the engine.

(See Build Mode Section)