# Using RetroArch overrides
If you do not want to use RetroBat configuration for RetroArch global settings or shader configuration, RetroBat offers a way to automatically load the configuration and/or shader override files that you would have created in RetroArch.
### RetroArch configuration override
In RetroArch, it is possible to save a configuration override filefor a game, a content folder or a libretro core.
In order to save a configuration override file, open the RetroArch quick menu by pressing SELECT +  on your controller (F1 on keyboard). Perform all required RetroArch general settings, then open the "**Overrides**" menu:
In this menu, save the override file at the desired level (game, core, content folder):
RetroArch will automatically save an override configuration file in the Core config folder:
Last, enable the override option in RetroBat [MAIN MENU > GAME SETTINGS > RETROARCH OPTIONS > EMULATION](https://wiki.retrobat.org/navigation/main-menu#game-settings)
### Shaders Overrides
In RetroArch, it is possible to save a Shaders override file for a game, a core, a content folder or globally.
In order to save a Shaders override file,open the RetroArch quick menu by pressing SELECT +  on your controller (F1 on the keyboard). Than open the **Shaders** menu to manage the settings:
Once the settings done, open the "**Save Preset**" submenu:
Save at the desired level (folder, core, game, global):
RetroArch will automatically save the shaders configuration in a file :
Finally, enable the Shaders override option in RetroBat [MAIN MENU > GAME SETTINGS > RETROARCH OPTIONS > VISUAL RENDERING](https://wiki.retrobat.org/navigation/main-menu#game-settings):
### RetroArch custom Aspect Ratio override
When using the "custom" aspect ratio value in **ADVANCED SETTINGS > GAME ASPECT RATIO**, it is possible to force the value of the ratio to apply in RetroArch by creating a .txt file with the following information:
* width
* height
* top
* left
The information from the file will automatically fill the following values in RetroArch:
To do so, create a txt file either in the `roms\` folder of the system the ratio needs to be applied, or within the `user\customratio` folder of your RetroBat installation:
Example for NES
The file must be named either:
* `__customratio.txt` (to be applied for a specific game)
* `_customratio.txt` (to be applied for the full system)
Finally, enable the "custom" aspect ratio value in RetroBat:
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