About Sync and Vst

Hello,
I've heard about that the lack of any way of video syncronization can be solved using several tools like "mediavst" and something called jbridge. Work they in Notion 4? How they work? Are they free?
(I have tried mediavst from the forum post and I cannot make it work).
I have another question: Can I use Midi sounds in Notion? How? It's for using some sounds similar to harmonium for composing purposes (I make first an sketch and then I orchestrate it).
Thanks in advance.
I've heard about that the lack of any way of video syncronization can be solved using several tools like "mediavst" and something called jbridge. Work they in Notion 4? How they work? Are they free?
(I have tried mediavst from the forum post and I cannot make it work).
I have another question: Can I use Midi sounds in Notion? How? It's for using some sounds similar to harmonium for composing purposes (I make first an sketch and then I orchestrate it).
Thanks in advance.