If I'm not wrong: launch the finder, open up the menu "Go to", then use the Option key to make appear an option (Bibliothèque in French, prob. Library in English) as you can see below:

That will lead you to a place in which you should find "Application Support". Open it, scroll down to Poser and its corresponding subfolder (the version) or "Poser Pro"

𝒫𝒽𝓎𝓁

---

(っ◔◡◔)っ

👿 Win11 on i9-13900K@5GHz, 64GB, RoG Strix B760F Gaming, Asus Tuf Gaming RTX 4070 OC Edition, 1+2 TB SSD's, 6+4TB HD
👿 Mac Mini M2, Sequoia 15.5, 16GB, 500GB SSD
👿 Nas 10TB
👿 Poser 13 and 14 ❤️

𝑀𝓎 𝒢𝒶𝓁𝓁𝑒𝓇𝓎