Cannot replace the mesh in s4s

Hi, gothiciii. Clone this item again, export its blend, open it, and study it. There will be 2-3 s4studio_mesh_ in the outliner. You will see that they have different cut numbers that correspond with the order they exists in the package.

One will be the shadow on the ground, the second one will be the whole table, the third one(if there is a third one) can be for transparent or mirror surfaces, etc.
Basically, the mesh is split into multiple parts to tune each of them differently.
When you clone something made of 2 meshgroup, you must import the blend that contains 2 meshgroups. Their cut numbers must correspond with those of the original meshgroups.
So your custom shadow plane must replace the original shadow plane, custom table must replace the original table. This way they will inherit the unique tuning that the originals had.