Custom inspector Vs. Custom window

Hi @alexanderameye. Basically, you should create a custom inspector if all of your controls just related to a particular object being inspected (i.e. selected). If your tool interacts with other objects in your project besides just the selected one, then an EditorWindow is the way to go.

That said, there are some places in the editor where we currently do sort of a hybrid. For example, in the inspector for a ParticleSystem, there is a button to view the controls in a separate window instead, which lets you see more information easily, since most users generally have a fairly narrow Inspector.