I couldn't find the answer searching in the issues here, or on the documentation: is it possible to have multiple windows/figures open?
Yes, you can use the keyword reuse = false.
I am leaving the issue open, as 1) this could be better documented, and 2) it appears to be broken on the GR backend (pinging @jheinen just to make him aware of this).
But generally, questions like this find a quicker response on https://gitter.im/tbreloff/Plots.jl , which is the preferred place for usage questions.
Is there any fix/workaround for this issue on GR backend now?
Once there are multiple figure windows open (via reuse=false), you cannot selectively reuse specified figure windows (via reuse=true); only the last one. See my comment in #47.
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Is there any fix/workaround for this issue on GR backend now?