You can select several files with Ctrl + Left Mouse Click
You can see full list of files in archive with menu command "View / Flat View" Then you can select any of them and delete.
show example
check it again, and describe all steps and commands including name of archive. try same actions in another programs. use latest 7-Zip 26.01.
check it again, and describe all steps including name of archive. try same actions in another programs.
Writing 1 byte into a region of size 0 in Bcj2Enc.c
false positive
7za e a.zip -so > newname.txt