Sure. To proscribe a path (cancel it/disable it) you select two navigation points simultaneously, simply click one and then Ctrl click the second and you have both selected. The path you wish to proscribe should be between the two navigation points/spawn points etc. These paths are visible when you press the "P" button. Now that you have the two path nodes/spawn points selected right click one of them (both should remain selected) and look for the option in the drop down menu that says "Path Options" from here you can force paths which is good for making bots take one specific path (for example, go left after going through a one way portal so that the bot won't continue trying to walk back through the one-way portal), you can also proscribe and I think you can do something else, I don't remember what it is though. Proscribe will essentially tell the bot not to use that path. Once the path is proscribed, the path should be red.
Bloom lighting, Field of Vision, Desaturation, Depth of Field, and all of that jazz can be found under the World Propertise details. It can be found under view in the top menu. Bloom and such are conscidered post processing effects, so it will be under a drop down menu under the title of post processing. Notice that the post processing menu is a little deeper in, it isn't one of the top few menus, so you will need to explore, besides, exploring this content is educational. Har har. Okay, once you reach the Bloom lighting modifier you will see a number that should (by default) be .2, enhancing this will add more of a glowing effect to light sources and weapon pickups. Depth of field is essentially what you experience when you look at something up close and the objects in the background blur and then when you look at the objects in the background and the foreground objects blur. Try using Depth of Field if you want, but really, it isn't too important, by default it is deactivated and you will need to toggle it on.
EDIT: Also, I didn't mean to say field of vision, I meant depth of field, I accidentally said FoV. FoV is part of core gameplay and can't be changed without editing some gameplay script.
