Oliver is right.  When you try "volume zflip #1" the log panel colors the "zflip #1" part in read saying it expected a keyword or model number -- that means it dod not like the "zflip".

Tom

On Feb 18, 2021, at 9:34 AM, Oliver Clarke <olibclarke@gmail.com> wrote:

This command is for Chimera. I think you want “volume flip #1” for ChimeraX

On Feb 18, 2021, at 12:18 PM, Boyer, Joshua A <jaboyer@email.unc.edu> wrote:

Hello, 
I am new to chimera and trying to flip the handedness of a cryo density map. I have opened the *.mrc file in chimera and its current ID # is 1.  It seems I should use the command 'vop zflip #1' based on the online documentation I could find. The error output says: "Expected a density maps specifier or a keyword". I am running the current ChimeraX (daily). Apologies if I am missing something simple, but I could use some assistance. Thank you in advance. ~J 
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