Shortcut key on skill tree

I find some shortcut keys getting activated on my french skill tree. What is the use of them? When should/ should not I use them?

October 7, 2013

1 Comment

These shortcuts are used to skip a whole group of units by testing out. If you are not a beginner in French and don't want to waste your time on too easy topics, use the shortcut and unlock some more advanced lessons.

October 7, 2013
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