Edit your carvarations. I forgot how to but search it up.

I believe that you do:

<Item>
<modelName>police</modelName>
<colors>
<Item>
<indices content="char_array">
134
134
0
156
</indices>
<liveries>
<Item value="true" />
<Item value="false" />
<Item value="false" />
<Item value="false" />
<Item value="false" />
<Item value="false" />
<Item value="false" />
<Item value="false" />
</liveries>
</Item>
<Item>
<indices content="char_array">
134
134
0
156
</indices>
<liveries>
<Item value="false" />
<Item value="true" />
<Item value="false" />
<Item value="false" />
<Item value="false" />
<Item value="false" />
<Item value="false" />
<Item value="false" />
</liveries>
</Item>
<Item>
<indices content="char_array">
134
134
0
156
</indices>
<liveries>
<Item value="false" />
<Item value="false" />
<Item value="true" />
<Item value="false" />
<Item value="false" />
<Item value="false" />
<Item value="false" />
<Item value="false" />
</liveries>
</Item>
<Item>
<indices content="char_array">
134
134
0
156
</indices>
<liveries>
<Item value="false" />
<Item value="false" />
<Item value="false" />
<Item value="true" />
<Item value="false" />
<Item value="false" />
<Item value="false" />
<Item value="false" />
</liveries>
</Item>
</colors>
<kits>
<Item>0_default_modkit</Item>
</kits>
<windowsWithExposedEdges />
<plateProbabilities>
<Probabilities>
<Item>
<Name>Standard White</Name>
<Value value="100" />
</Item>
</Probabilities>
</plateProbabilities>
<lightSettings value="1" />
<sirenSettings value="1" />
</Item>
<Item>

Edit the livery part to true on every other value there. Descending. That might work. GL