Yeah I remember the good ol' building grind in MoO2.  And yes, at the moment it is exactly the same in Elemental.   I'm all for a cutomisable auto build list.  Preferably something easy to access and modify In-Game.  I recall one of the civilisation games (I think it was no.2) had customisable auto build lists, but you had to create a file in a specific place, using specific formatting to get it to work.   Then you couldn't change it while in game.

The issue I see wih the auto build list is that it needs to be able to hold all buildings, regardless of whether you have researched the building in the current game or not.  It shuold just skip over buildings that are unavailable.  Also, with Elemental's building system, you have to place each building.  This could cause major issues in having an auto build function.  Also, when you reach the city cap for buildings, does the auto build just get put on hold until the city reaches the next level and you can start building again?  Or will yuo have to manually go and restart the auto build, in which case, you want it to start from where you finished (before teh cap was hit), not from the beginning again!!