You can go to settings by pressing your ESC key and clicking on "Options" or "Graphics". If you have unbound your ESC key, you can still go to that same menu by clicking on the gear icon on your bottom right. 

Game

Camera

Show Transparent Objects

If you have a low-end computer/laptop, it may be useful to turn this option off, since having to render fewer transparent objects may help your frame rate.

Enable Screen Shake Effects

Leaving this option will allow certain effects, abilities, and enemy attacks to create a camera shaking effect to make them feel more impactful. Personally, I turn this off because I find it a little annoying.

Smooth Camera

This setting is responsible for the smoothness of the camera (for example, zooming in and out of your character). If you put it on the lower end, the camera will be smoother and take longer to stop moving. If you put in on the higher end, the camera will be quicker and feel more snappy. Personally, I like the camera smoothness to be on the higher end at 80%.

Max Zoom Distance

This setting is responsible for the maximum camera distance from your character. The lower the setting, the closer the max camera distance is from your character, and the higher the setting, the further the max camera distance is from your character. I personally like to have this setting at max because being able to have a wider view of the area is nice when trying to find chests and during boss fights, but some people may prefer to have it at 67% or 84% if the max is too far away.

Interface

ESC key closes all windows

Pretty self-explanatory. Having this setting turned on will make it so that when you press your ESC key, it will close all windows that are currently open.

Show guide Tooltips

I'm not exactly sure what this setting does, but if you do know, please let me know by contacting me (info can be found on the home page)

Display Help Tips

I'm not exactly sure what this setting does, but if you do know, please let me know by contacting me (info can be found on the home page)

Enable Personal Performance Meter

This setting displays a personal performance meter on the side. The yellow section will have the time elapsed since the last reset, and the total value to the right of it. There are multiple categories that you can go through with the "Change Categories" button to the left of the refresh button. These categories are Total Damage, Damage Per Second, Hit Rate, Critical Rate, Damage Taken, EXP Gained, and Mesos Gained. The refresh button will reset the time and total value. If you wish to test your DPS, you can go to your Guild House (if you have a guild), where you can find 3 dummies to fight. You can also go to the Chaos Raid Lobby where you can find dummies as well. When testing your DPS, you should click the refresh button and immediately start attacking for around a minute or so. Keep in mind that the dummies in your Guild House are in a group of 3, so it may be little hard to get single target DPS numbers there.

Enable 10-Player Dungeon Meter

This setting, when turned on, will display a bigger version of the personal performance meter for your party when you enter a Chaos Raid. It will also rank the members, so you can tell who is doing the most damage easily.

Interface Size

Damage Transparency

Damage Size

Restore Default Layout

Use Mouse Controls

Turning this setting on will allow you to move your character by left-clicking. Personally, I'm not a fan, but I guess some players do like it.

Status Text

Show My Name

Show Friendly Player Names

Turning this setting off will hide the names of friendly players. This is a useful setting for when there are too many players on your screen and is causing your frame rate to drop.

Show Hostile Player Names

Show NPC Names

Show Monster Names

Display Job Portrait in Conversations

I'm not exactly sure what this setting does, but if you do know, please let me know by contacting me (info can be found on the home page)

Show Monster Health Values

This setting is responsible for showing the health number at the top while you are fighting a monster. Personally, I don't see a reason to turn this off.

Display Current Experience %

This setting is responsible for showing your current experience percentage at the bottom of your screen. Personally, I don't see a reason to turn this off.

Show My Character's Health Bar Overhead

Show Ally Health Bars Overhead

Show Monster Health Bars Overhead

Boss Spawn Alerts

This setting has 3 options. Besides the last one where it disables all boss spawn alerts, I'm not very sure about this setting, so if you do know, please contact me through the contact information found on the home page.

Show speech bubbles for normal chat

This setting is responsible for displaying the speech bubble when you or someone else sends a message in local chat.

Show speech bubble for party chat

This setting is responsible for displaying the speech bubble when you or a party member sends a message in party chat.

Show speech bubble for guild chat

This setting is responsible for displaying the speech bubble when you or a guild member sends a message in guild chat.

Mute Other Pets' Effects and Sounds

This setting is responsible for hiding the effects and muting the sounds from other player pets.

Hide Your Pet

Hide Other Players' Pets

Hide Convenience (Meret) Features

I am not sure which features specifically this setting is responsible for, but if you do know, please contact me through the contact information found on the home page.

Never Open Maple Guide Automatically

This setting is responsible for preventing the Maple Guide to open automatically when you have leveled up and unlocked a new Maple Guide Mission.

Battle Text

Damage Text

This setting has 3 options. First is the option to show the damage dealt numbers of all players. The second option allows you to see the damage dealt numbers of you and your party members. The third option allows you to see the damage dealt numbers of only yourself. I don't believe there is a way to hide your own damage dealt numbers.

Damage Taken

This setting has 3 options. First is the option to show the damage taken numbers of all players. The second options allow you to see the damage taken numbers of you and your party members. The third option allows you to see the damage taken numbers of only yourself. I don't believe there is a way to hide your own damage taken numbers.

Show Healing I Provide

Not too sure what this is responsible for. If you know, please contact me through the contact information found on the home page.

Show Healing I Receive

Not too sure what this is responsible for. If you know, please contact me through the contact information found on the home page.

Show Healing Received by Party members

Not too sure what this is responsible for. If you know, please contact me through the contact information found on the home page.

Show Mesos earned

This setting is responsible for showing the amount of Mesos earned after a kill.

Show Experience gained

This setting is responsible for showing the amount of experience that you earned after a kill.

Show Stamina Bar over character

This setting is responsible for showing the stamina bar when you use an ability that consumes stamina.

Reduce Font Size

Not too sure what this is responsible for. If you know, please contact me through the contact information found on the home page.

Increase Transparency

Not too sure what this is responsible for. If you know, please contact me through the contact information found on the home page.

Community

Show your speech bubbles

This setting is responsible for displaying your speech bubble. Disabling this will override your personal speech bubble settings in Status Text.

Show other speech bubbles

This setting is responsible for displaying the speech bubbles of other players. Disabling this will override the other player speech bubble settings in Status Text.

Verify Meret use in World Chat

This setting is responsible for giving you a verification when you try to send a message in World Chat since it costs Merets to do so.

Verify Meret use in Channel Chat

This setting is responsible for giving you a verification when you try to send a message in Channel Chat since it costs Merets to do so.

A bunch of block settings

Self-explanatory settings that will automatically block certain invites.

Graphics

The settings under the Graphics tab should be self-explanatory. You can also hover your mouse over the setting and it should give you a tooltip explaining it in detail.

If you want to see your ping or FPS, you can turn on the "Display FPS" setting under graphics.

Your FPS and Ping will show up in the top-left corner of your screen in the format of FPS(Ping).

Sound

The settings under the Sound tab should be self-explanatory. The only things I should mention are that the "Play Sounds in Background" option will allow you to hear game sounds while you are in another window, which is useful for when you are waiting for something while you are Alt-Tabbed, and that the "Play Instruments" setting is useful if you want to turn off player instrument sounds (for when there are a ton of people playing at the same time and are making your ears bleed).

Controls

These settings should also be self-explanatory. My personal setup is movement being WASD, menu shortcuts on F1, F2, F3, etc, and skills on the image displayed below.

To preview an item/outfit, you must set a keybind to the "Item Preview" under Controls -> Misc. Hold the key and left/right click an item to preview it on your character.

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