how to change structures settings?

I am looking for help with structures in M-creator.  I would like to make the "Jungle temple" spawn in the taiga biome.  Would it be better to make a new biome as close to taiga that I can & tell it to spawn Jungle temples & such in that new biome or I could copy the Jungle temple structure as a new structure that will spawn in taiga biomes or is there a way to mod vanilla biomes so they will spawn Jungle temples or maybe some way to spawn a Jungle temple with a procedure that I could some how run when u are close to a taiga biome.

I am looking for the best way with adding the least things to my mod.  So I can change what vanilla structures spawn in vanilla biomes?