Workaround for adding hardcoded subtitles in ShotCut?

Hello guys…
I have an issue close to the mentioned one above…
I use HTML Text to subtitle video (into Arabic) from 0, and I have to select separated HTML files each time to add new subtitles to video otherwise the text I input will apply to all subtitles on video which is very annoying.
I prefer using HTML because it gives high-quality subtitle unless Sample Text
I’m using Windows 10 (1909) latest version and Shotcut 20.04.12.
Any suggestions will be much appreciated

Did you try using the utility I put together which uses a single Text:HTML (HTML Overlay) filter file, with the subtitles and their timing specified on it. See here: http://elusien.co.uk/shotcut/webvfx/index.php and click on the “Subtitles” tab in the Features, Documentation and Examples sections.

Sorry, I’m confused a bit…
I did all the mentioned steps in your post above, but how to apply/use this in Shotcut aside
Thanks

Thanks
I firgued it out…
but doesn’t help much