how to instal:
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delete the old version of 'ELS Engine Mod' or 'MasterMasterMod' which was the name of the file before V0.0.5, inside your mod folder,
extract the mod .dll file from the zip archive,
put the mod file inside your mod folder.
you now should have the mod working.

keybinds:
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Mod Menu keybind is 'U' (press it to open or close the mod menu in game)
2-step keybing is 'Y' (hold it to enable 2-step)

how to use:
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to access the menus press the pause button, then use mouse to click on the 'engine, suspension, drivetrain, stats, options' menus to open them
then use mouse to click on the '+, -' or checkmarks to switch them.

is the mod isn't working:
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make sure the mod is inside your mod folder
if you have any problems with settings that can't be changed, please delete the pressetSave file located in 'Mods => Config => ModSettings => RaceSatsumaMod'
try reinstalling it,
if the UI is broken, check if you have 'grabAnything' or the 'EngineInfo' mod installed, both of those are known to cause issues in this mod's GUI
if it still doesn't work, try removing all other mods (don't remove assets folder as this will make the MSC mod loader not to work)
if you have any further problems, you can contact me on my discord server here: https://discord.gg/CvZjQJ9