Archetype without the whole book

[NeoEvaX]

I am running a game where we are using mostly core. I am allowing a few things like traits and letting the rogue go unchained.

But I want to also allow the wizard to go have the Archetype Thassilonian Specialist.

I own nearly every book. Is there anyway to allow him to pick that archetype without having to select the Advanced Players Guide from the options. He does not want to get confused by more spell options, just wants to see the core options.

I have tried messing with the editor, creating a duplicate of the archtype. Editing source, but as soon as I unselect APG from the options the archetypes just go away fully. No way to select it.

I am willing to dig into the editor for this. I even have an xml update file for my players to get updated edits, I am just not sure howto do this.

tldr: How can I use the editor to add an archetype while only keeping the core rules (no APG checked)