Downsampling Bin 1 image after debayering

Want to know if Siril currently offers a way to downsample during ‘registration’ process? So basically going from Bin 1 to Bin 2.

I read somewhere that with OSC cams, it’s better to do downsampling after debayering rather than doing Bin 2 data acquisition during observation. Since it’s an OSC cam, it will lose good number of pixels.

That’s why I am curious to see if such downsampling can be performed. I have seen downsample checkbox during astrometry platesolve but can it be independently executed?

Any other suggestions are welcome (I guess).