We're taking a look at Softube's Modular - its a software emulation of a Eurorack environment which features selected modules from the Doepfer range, plus a bunch of utility modules from Softube. It also allows you to purchase add-on modules from Intellijel and also from Softube's own Heartbeat Drum machine.
Available as VST, VST3, AU and AAX Native plug-in formats, you can create huge modular patches and save and recall them of course.
Whats also interesting is that you can build your own system, and create mulitple patches. Additionally its possible to bus out additional audio and CV signals - if you have the DC coupled audio interface, this means controlling external modular gear too.
As ever, if you have any questions you want answered ini the full review leave them in the comments.