Speaking of Broken Earth...

[SeeleyOne]

I had initially recommended the Edge. The Edge and Advancement is the same cost. The only difference is that there is no way to have an "Advancement-only" Edge. Too bad, because there is a "creation-only", but that is really a relic from earlier editions as it used to be that Background Edges could only be taken at creation.

You could go the way of the other Edges and Advancements that are taken when they should not be and make a Validation warning if it is not taken with an Advance. But I personally hate the "after-the-fact" warnings.

However, if you cannot get the Advance to work the way that you want, as they are much simpler objects within Hero Lab than Edges, you might have to or else there will always be those warnings. And they will continue while using that character.