there is no trial version, but, a money back guarantee, I believe.
I can highly recommend this plug-in.
Step learning curve, possibly, but rewards the effort!
You can design without engineering, but you cannot engineer without design.
Using Win 10 with Designer 2017-2020 and TurboCAD Pro. Plat. 2018-2020 + Lightworks (64-bit versions) + AnimationLab 5.2.
Windows 10 Pro (1909) 64-bit