If you want you can try my not published extension. It was meant as a replacement to the scaling utilities extensions ( so that's why if you install it save you game before, install my extension, remove scaling utilities), as it didn't work for actorsthat didn't their origin points a the centre. I added little by little plenty of blocks. I'll publish it maybe as a real extension later, when it'll be clean.
All the blocks
getScale : get scale percentage for actor
scaledCoord
setScaledCoord
offset : coordinates for scaled points
scale: Scale in percentage
setScale: Scale in pixel, keeping ratios or not
scaledSize : in pixels
isScaled:
setRealSize: Set real size (not scaled size) useful when actor is attached to image instance ( not tested with collisions, shouldn't work)
setHeightAndWidth : Grow size depending on point ( made to bypass the grow system which doesn't work when actor is set to not move)
fitActorInRectangle: change actor's size so that it fits into a rectangle. If can grow, it will be able to grow the actor
SHOULDN'T WORK YET
getOriginPointActor : current origin point for actor
setOriginPointActor : set current origin point for actor. After the tween block, you have to set it the old one because of bugs with collisions
setXActor : scaled/non scaled x-left, x-right, x-middle from bottom/middle/top of screen ( in the future, scene and camera too)
setYActor : scaled/non scaled y-top, y_middle, y_left from bottom/middle/top of screen ( in the future, scene and camera too)
getSizeActorType : actor type size
setXActorFromActor
setYActorFromActor
destroyActor : destory actor, don't recycle it, must be used with actors created with createActorFromImgInst
createActorFromImgInst: create actor from img inst ( not tested with collisions, shouldn't work)
isActorInsideActor : returns percentage of actor inside bigger actor
Hopefully, it will give inspiration to Stencyl devs

If ever any of you have ideas for future blocks, tell me
