How to bulk remove "style" (or dual language subtitle for that matter)

[shadiow]

Hi all. I have this dual-language file and I want to remove all the Chinese lines (in green circle) and keep the Japanese ones(red). How do I do this in bulk ?




[Attachment 54758 - Click to enlarge]

[sneaker]

For a single file:
1. Tools->Sort By->Style
2. Select first line with style you want to remove
3. Hold shift and click last line with style you want to remove
4. press delete

Bulk? idk with SubtitleEdit. But should not be difficult with batch search&replace via regex with an editor like Sublime Text ("Find"->"Find in Files"). Btw, all Chinese "lines" seem to be comments. So regex would be very simple like "^Comment: .*\n" or "^Comment: .*通用720中文.*\n" to be safer ...