[Armin]

There's no simple way to fill arbitrary tags for things in templates. However, you may be able to use replacetags() for this purpose:

ReplaceTags( in "ST:ST" with "up(5/10), down(-5/-10)", in all "SK:No-Landing Extraction" with "cat(Military), page(CI151)")

This allows targeting arbitrary traits with replacements for tag values. There's also mergetags() if saving prior values is important (and possible; it often is not given how many tags are single value only):

MergeTags( in "SK:Forward Observer" with "cat(Military), page(CI151)", in "SK:Darts" with "cat(Hobby), page(CI146)")

Sorry there's nothing more obviously designed for easily including stuff like aa() into these things. The alternative, and not a great one, is to include the full definition of the armor items as a creates(), and include the aa() tag.

Armin