Hi 

I am trying to measure angles between three atoms using ChimeraX by typing
>>> angle  #1/a:1001@FE, #1/d:1001@FE,#1/a:141@C

However, the log reports:
angle #1/a:1001@FE, #1/d:1001@FE,#1/a:141@C
Unknown command: angle #1/a:1001@FE, #1/d:1001@FE,#1/a:141@C

I have also tried to check if 'angle' is a valid command in the ChimeraX window I have opened.
>>>usage angle
In Log ---> "angle" is not a command name

However, angle does seem to be a valid command in ChimeraX. In the documentation here -- http://www.cgl.ucsf.edu/chimerax/docs/user/commands/angle.html.

I am using ChimeraX-1.0  ( version: 1.0 (2020-06-04))

I might have missed things out - Could you please give an idea of how i could measure angles using the command line in ChimeraX?

Thanks
Yaikhomba