The PBR Render Target is the control center for rendering with OctaneRender® for Unity®. A Unity scene can have multiple PBR Render Targets. You can add PBR Render Targets from the Octane menu (Figure 1), or by right-clicking in the Hierarchy window and choosing Create PBR Render Target (Figure 2).
Figure 1: Creating a PBR Render Target from the Octane menu
Figure 2: Create a PBR Render Target from right-clicking in the Hierarchy window