Can you edit a .all file from within the sequencer? I have a 3000.

Hi Runner50.
There is no .all file among the filetypes, it's only a description
about saving or loading all technics related filetypes in the song
or patternfile (track) you're working with at once.
You'll find a filedescription at the technical part of my webpage.

If you take a look in a folder or diskette where you have saved or
stored some Technics files, you'll see that each "tracknumber" have
several files starting with the same tracknumber, as 01, 02 etc.
I.e. the file .seq (sequenser) and .pnl (panelmemories) can be loaded
or saved separately, or among with all others used.
When .all is mentioned, it means that you load or save all the files
build for the track, instead of one or more as only the panelmemories
or sequenser, or only the composer (.cmp) files.
Kind regards
GJ