Default animation for animated stage portraits

[MUGEN-Slayer]

It's not necessarily a request for a new feature, it's more a suggestion to have something like a default number for stage portrait animations as more people have been using that, and from what I've seen they've been using different numbers. So I suppose a standard would be nice. Example:

[BGdef]
spr     = stage.sff
debugbg = 0

;------------------------------------------------------
;-IKEMEN GO ONLY, Select screen animation
[Begin Action 9000]
9000,1, 0,0,-1 

Since you can have either portrait or animation, this simply solves the situation of stages that are static or if the creator doesn't add an animation. And I think positioned below [BGdef] is a good place to keep things organized.
Also taking into account that the stages that come with the engine do not have animations.

[MUGEN-Slayer]

I edited the def files of the default stages adding animation 9000 along with a short description. If it helps, here it is:
stages+9000anim.zip