So assume I'm the mainview, and I just received so...

# tornadofx

[iari]

So assume I'm the mainview, and I just received some fancy Event that carries some data, telling me I should possibly do some opening stuff with it.
Then I realize, that that the kind of tab it wants me to open is one of the "CanAppendTo" style tabs, and I also know, that I already have one of these opened somewhere