I always run my own compiled version of the latest Scid. I notice that the "save" button on the Header Search does nothing when pressed (save button circled in red on attached screen shot). By contrast, the save button for the Material Pattern search does work as one would expect, offering to create a .sso file.
Hi,
the button is disabled (it is not really clear in the screenshot with the custom theme you are using. By the way, have you tried the new default dark theme?).
The Header Search has been rewritten and that functionality has not already been re-implemented.
However, do you know that you can type google-like searches in the gamelist's search bar?
For example you can achieve the same search of your screenshot typing:
More examples here:
https://sourceforge.net/p/scid/code/ci/77efee336bac2b4ff730c33102a368b4c71ae5c0/tree/tcl/windows/gamelist.tcl#l193
Thank you so much Fulvio for your very helpful response. I was not aware of the google style search capability and that will work just as well for me. Thank you for all your work on Scid.