mxPath: option to exclude self from all

To facilitate scripting (especially the common task of adding drawing covariances between latent variables), it would be nice to have an option to exclude self from all. Given the released function, perhaps the best option would be to add a parameter:

includeSelf = F

Or have I missed an easy trick?

example of current function:
> mxPath(from=latents, arrows=2, free=T, values=1, all=T)
mxPath
@from: 'vis', 'vis', 'vis', 'math', 'math', 'math', 'text', 'text', and 'text'
@to: 'vis', 'math', and 'text'
@arrows: 2
@values: 1
@free: TRUE
@labels: NA
@lbound: NA
@ubound: NA