I am trying to make the sphere of an ion in an active site larger than what appears in the structure.

I asked a similar question back in December, and on checking my notes I tried to use the command

setattr ballScale 0.5

I first selected the ion using control<click). The ion was selected. I then tried the command line as I show it above.

Nothing appeared to happen.

Indeed I tried to do the same for an atom of a residue that I had selected using control <click> again nothing.

I must have forgotten something.

A message from Elaine suggested that I use

setattr m ballScale 0.5

Am I supposed to select the residue and leave out the m?

Thanks for your patience.

Arthur Szabo