In data/english/CoreUnits.xml you find
<UnitType InternalName="TraderTest">
<DisplayName>Caravan</DisplayName>
<Description>Caravans boost your economy by allowing merchants in your cities to trade goods with each other.</Description>
<CanBeDesigned>0</CanBeDesigned>
<Gender>Male</Gender>
<HasWages>0</HasWages>
<IsCaravan>1</IsCaravan>
<IsSovereign>0</IsSovereign>
<LevelMilestone InternalName="L1">
<Level>1</Level>
<UnitStat_CombatSpeed>14</UnitStat_CombatSpeed>
<UnitStat_HitPoints>1</UnitStat_HitPoints>
<UnitStat_Moves>1</UnitStat_Moves>
</LevelMilestone>
<Medallions InternalName="">
<All>Caravan1_Medallion.png</All>
</Medallions>
<AnimationPack>HorseAnimationPack</AnimationPack>
<BattleAnimationBehavior>Melee</BattleAnimationBehavior>
<BobbingFrequency>0</BobbingFrequency>
<ClothMapScale>0.18</ClothMapScale>
<Color_Skin>70,50,35,55</Color_Skin>
<EyeTexture>gfx\Eyes\blinks\eyeblink_m1_brwn.png</EyeTexture>
<InfoCardBackground>BG_GoodScene</InfoCardBackground>
<MaxScaleMainMap>0.4</MaxScaleMainMap>
<ModelPath>gfx/hkb/Monsters/M_Horse_Mesh_01.hkb</ModelPath>
<ModelScale>0.5</ModelScale>
<MovementType>land</MovementType>
<MovingSFX>TEMP_KnightMarching1</MovingSFX>
<OnHitParticleName>Bloody_OnHit</OnHitParticleName>
<SkeletonPath>Gfx\HKB\Monsters\M_Horse_Skeleton_01.hkb</SkeletonPath>
<TacticalModelScale>1.5</TacticalModelScale>
<Texture_All>M_Horse_Texture_01.png</Texture_All>
<GfxAttachment>
<ModelPath>Gfx\HKB\Objects\K_Wagon_Mesh_01.hkb</ModelPath>
<SkeletonPath>gfx\hkb\Objects\K_Wagon_Skeleton_01.hkb</SkeletonPath>
<Texture_All>K_Wagon_Texture_01.png</Texture_All>
<EyeTexture>gfx\Eyes\blinks\eyeblink_m1_brwn.png</EyeTexture>
<AnimationPack>WagonAnimationPack</AnimationPack>
<AnimationSpeedModifer>1</AnimationSpeedModifer>
<Scale>2.8</Scale>
<OffsetZ>110</OffsetZ>
<OffsetY>5.1</OffsetY>
</GfxAttachment>
<GfxAttachment>
<ModelPath>gfx\hkb\Pedestrians\K_Peasant_Farmer_Mesh_01.hkb</ModelPath>
<SkeletonPath>gfx\hkb\Pedestrians\K_Peasant_Skeleton_01.hkb</SkeletonPath>
<Texture_All>K_Peasant_Texture_01.png</Texture_All>
<EyeTexture>gfx\Eyes\blinks\eyeblink_m1_brwn.png</EyeTexture>
<AnimationPack>PedestrianSittingAnimationPack2</AnimationPack>
<AnimationSpeedModifer>1</AnimationSpeedModifer>
<Scale>0.35</Scale>
<OffsetZ>62</OffsetZ>
<OffsetY>41</OffsetY>
</GfxAttachment>
</UnitType>
Increase its moves to what you desire.