[idvusers] Using idv for LES visualization

I'd like to move from VIS5d to IDV for small domain les simulations
(6km x 6km x 4km at 25m^3 resolution).  Vis5d defines
(projection 0 = linear, rectangular, generic units)
which avoids the cost of converting/distortion in going from
native x,y to a particular map projection.  Is it possible
to do something similar in IDV?  Are there any examples
of, say, cf-netcdf metadata that would be best-suited for
high spatial resolution/small domain fields?

thanks, Phil