Optical flow using Hybrid -- Possible?

[markfilipak]

... Hybrid can use Inteframe for frame interpolation.
Filtering->Vapoursynth/Avisynth->Frame->Interpolation->Frame Interpolation

Thank you. Yes, I see it now.

Instead of 'FPS: 119.8801', I'd prefer '5x'.

Hybrid's default overrides:
Super: {scale:{up:0},gpu:1,rc:true}
Vectors: {main:{search:{coarse:{distance:-8},type:2}},refine:[{thsad:250}]}
Smooth: {rate:{num:2,den:1,abs:false},algo:2,mask:{area:100},scene:{mode:0}}

Since I want 'perfect' and I don't care how long it takes, I will try:
Super: {pel:2,scale:{up:2,down:2},gpu:1,rc:true}
Vectors: {block:{w:8,h:4},main:{search:{coarse:{distance:-8},type:4}},refine:[{thsad:250}]}
Smooth: {rate:{num:5,den:1,abs:false},algo:23,mask:{area:100},scene:{mode:3}}

I'm aware of all the settings, but I must confess that I don't know what all of them mean.

Is there somewhere I can set this:
-codec:v hevc_nvenc -preset 1 -rc 0 -spatial_aq 1 -bluray-compat 1 -multipass 2
I'm looking at Base, 'Video: NVEnc'; NVEnc, 'Codec: h265' ... but I don't see a way to stuff the desired parameters above.