Sega Model 3 UI v1.1.1.3 is released. This is a simple UI for the Supermodel. Supermodel is a Sega Model 3 arcade emulator.

Additional features:
Borderress can now be set.
A window will appear where you can decide the display position.
Please press the 3-point leader button.
Resolution can now be selected only from the drop-down list. Need a fix?
CrossHairStyle can now be selected.
RefreshRate is fixed at 57.5246. Need a fix?
PowerPC frequency can now be set to 0.
0 is Auto
Added a Write ini button.
It is also written to the ini file when you press 'LoadRom'
Added 'Step' display to Gamelist
I didn't know the font, so I chose the normal "Arial".

Sega Model 3 UI v1.1.1.3 Changelog:
Improving Input Device Index Retrieval for Supermodel3 Gun Games
"People sometimes make mistakes because of their own preconceptions" by Great People of the Past and Ponmi
It was a simple mistake.
To play gun shooting games on Supermodel3, you need to configure the input devices, which can be very cumbersome. In particular, you cannot retrieve the index of the input devices (mouse or light gun) without invoking the key configuration prompt. Additionally, Supermodel3 sometimes whimsically changes the index of the input devices (though this hasn’t happened in my environment so far).
In this update, I have made it possible to obtain the index of input devices without invoking the key configuration prompt. Version 1.1.1.2 was incomplete, but this update fixes it so that the index can be obtained even for mice using Windows standard drivers; in fact, it assigns them. For more details, please refer to the source code.
Streamlining Input Device Configuration for Supermodel3 Gun Games
Instructions
Selecting Input Type:
Go to the Control tab and select "rawinput" as the input type.
When you attempt to start a game with the "analog_gun" type, a pop-up window will appear.
Assigning Player Controls:
Click on "Player1 Shoot me!" with the mouse or light gun you want to assign to Player1.
Similarly, click on "Player2 Shoot me!" with the device you want to assign to Player2. You can assign the same device for both players if desired.
Once both players are assigned, the OK button will become clickable. Click it to proceed.
If you don't want to change the settings, press the ignore button.
To cancel the launch itself, press the cancel button.
Calibration and Configuration:
If this is your first time setting up the game, or if you're experiencing aiming issues, access the title's configuration menu to calibrate the sights.
Note that in "L.A. Machineguns," there might be occasional issues with the sights not moving, even though they are recognized in test mode. Restarting the game a few times might resolve this.
If aiming issues persist, consider deleting the nvram to reset the settings.
Additional Notes:
The Location Test version of "The Lost World" might not allow sight calibration.
Despite these challenges, the thrill of gun shooting games is well worth it.
Rediscover the fun of gun shooting games! It's the perfect way to enjoy some exciting gameplay with friends or loved ones.

Download: Sega Model 3 UI v1.1.1.3
Source: Here