Thanks for the link!
So basicly I need to add this to my .bin file:
<cMixTexDescriptor d:id="57080784">
<BaseTextureName d:type="cDeltaString">Artimrj\Routes\Environment\Terrain\Pavers\NE - Pavers02</BaseTextureName>
<BaseSpringTextureName d:type="cDeltaString"></BaseSpringTextureName>
<BaseSummerTextureName d:type="cDeltaString"></BaseSummerTextureName>
<BaseAutumnTextureName d:type="cDeltaString"></BaseAutumnTextureName>
<BaseWinterTextureName d:type="cDeltaString"></BaseWinterTextureName>
<DisplayName d:type="cDeltaString"></DisplayName>
<LocalisedDisplayName>
<Localisation-cUserLocalisedString>
<English d:type="cDeltaString">NE - Pavers02</English>
<French d:type="cDeltaString"></French>
<Italian d:type="cDeltaString"></Italian>
<German d:type="cDeltaString"></German>
<Spanish d:type="cDeltaString"></Spanish>
<Dutch d:type="cDeltaString"></Dutch>
<Polish d:type="cDeltaString"></Polish>
<Russian d:type="cDeltaString"></Russian>
<Other/>
<Key d:type="cDeltaString"></Key>
</Localisation-cUserLocalisedString>
</LocalisedDisplayName>
<Wang d:type="cDeltaString">eFalse</Wang>
<FloraIndex d:type="sUInt32">0</FloraIndex>
<FloraDensity d:type="sFloat32" d:alt_encoding="0000000000000000" d:precision="string">0.0000</FloraDensity>
<Category d:type="cDeltaString">eConcrete</Category>
</cMixTexDescriptor>
I also would need to change the paths (obviously).