This would significantly reduce performance overhead for rendering multiple instances of the same mesh.

Constructor:

local eInstancedStaticMesh = InstancedStaticMesh(location, rotation, mesh, start_cull, end_cull)

Function examples:

InstancedStaticMesh:SetMesh(sMeshAsset)

InstancedStaticMesh:SetCullDistances(nStartCull, nEndCull)

local nInstanceID = InstancedStaticMesh:AddInstance(tTransform, bWorldSpace?)

local nInstanceCount = InstancedStaticMesh:GetInstanceCount()

local tTransform = InstancedStaticMesh:GetInstanceTransform(nInstanceID)