How do I extract Forced flagged lines from a .sup file?

[maudit]

Hi, I'm wondering how to deal with .sup files that contain Forced flagged lines, like this:
"Subtitle (PGS), English, 1326 normal captions, 10 forced captions"
I'd like to split it into 2 different .sup, one for Forced and one for Normal.

I read everywhere that bdsup2sub can do that, but I don't wanna install java, I don't wanna use it.
With Subtitle Edit, I can select FORCED lines, delete them by pressing the DEL key, and then I can save a new .sup without the Forced lines,
but I cannot do the opposite, so I mean I cannot copy/paste these Forced lines into a new .sup, is it possible?
How can I extract these force lines only into a new .sup?

[johns0]

https://github.com/SubtitleEdit/subtitleedit/issues/2979 check here.

[maudit]

ok, thanks, I got it.
I used makemkv plus gMKV ExtractGUI in order to extract the Forced .sup.
Anyway using the "Show only Forced subtitles" box in the "Import/OCR" window, it actually works, even if I have to OCR them.