the VRC6 (regular) instrument editor consists of two tabs.
for sample settings, see the Sample instrument editor.
the only differences are the lack of an "Use wavetable" option, and the presence of a "Use sample" one.
note that using samples on VRC6 is CPU expensive!
this channel has its own instrument type, a one-of-a-kind thing in Furnace that was decided as a compromise during a debate.
the only differences from this instrument type compared to the regular one are: