There doesn't seem to be a switch to filter only a topic in an ini file or plaintext file, while there is such an option for /loadbuf (-t). This option could be really useful, for example for sorting in an ini file.
Of course you could get around this by using /loadbuf to a window then /filter and /remini the topic and filter back to the file, but this seems a lot of work and processor time wasted for something that could be much easier.
peppie