Unique Improvement model

[Scientist 5678]

Hello everyone! I am new to civ6 modding and I want to know how to create my own unique improvement (IMPROVEMENT_SARAY) using the ready-made game 3D model (IMPROVEMENT_ALCAZAR). Thanks in advance!

 

[Scientist 5678]

Solved.

 

[Jeppetto]

How have you solved this? Specifically I am curious about details of using model of existing Improvement for new one.