The Options Menu is pretty basic:
- Always show default doodads in WMOs: Leave this checked unless you need to show a bare WMO object. WMOs are very large model files (buildings, towers, vehicles) and usually crash WMV.
- Settings…
Settings…General Tab

Settings…General Tab
Adjusts display options in the canvas:
- Show Particle: turns particle effects on for fire, enchants, glowing effects for helmets/shoulders/etc.
- Zero Particle: assuming this minimizes the amount of particles displayed or turns off particle effects completely.
- Random Skins: may pull a random skin, if multiples exist, so the first time you load an imp it might be green, another time red, another time grey.
- Display Items NPC’s IDs in lists: If you need an ID (for looking up in wowhead, etc.) check this
Game Path: Normally the default path is C:\Program Files\World of Warcraft\Data\
If you have a custom install, you will need to enter it manually. Remember to include the trailing backslash.
Folder to explore for additional files: This is the custom game data folder. Yes, you can create custom skins. There is a tutorial on the subject which basically involves creating a similar folder structure and putting new model skins (e.g.: infernal with tan skins).
Conflict policy: When it finds two items of the same type, which should be the one WMV picks. Usually just leave it with Keep game files.
Apply – remember to click the Apply button with any changes you make here.
Settings…Display

Settings…Display Tab
OpenGL Display Mode: Allows you to set the color depth and other rendering features. Usually, the default settings are fine.
Field of View (in degrees): default is 45°
Field of View (or FOV) describes how wide the audience can view from their perspective. The angle of FOV is half to the left or right so 45° is 22.5° to the left or right. This also affects how the model is rendered and distorted to give the appearance of depth.

Field of View for Humans vs Animals with side facing eyes (like Murlocs and bunnies)
Humans typically see with about 110°-115° FOV. You can experiment to see if you like the perspective.
Additional Options
There are several checkboxes to turn various graphic shaders and renderers on/off. I typically leave these alone but feel free to experiment.
Settings…Export
Initial Pose Only Export: For certain 3D programs (Maya, Cinema4d) you may have reason to check this and click Apply.