"Zoom out/in" when overlap

I've reviewed several posts in the Forums here but couldn't find anything that made sense or was exactly relevant to my case...

I'm working on a Zelda-esque (old school) mobile game in which, when the main character overlaps the candle bloom, the camera will zoom out via scaling the layers out to show more of the level.

The event line reads:

If Character is overlapping CandleLight set Layer Scale to 0.5

The affected layers (currently, ONLY layer "Walls") have a scale rate of 50%.

What I am hoping to do is gently zoom the camera out/in rather than have it instantly appear at its updated scale. The problem I'm having is that when the Character overlaps said candle light, nothing happens.

The layout's Unbound Scrolling is checked and I tested it with unsuccessful results with it unchecked, as well.

I don't want to zoom out all the layers (ie: HUD) - just the ones related to the level design, etc.

Any suggestions on what I may try?

Here is the C3 file: https://www.dropbox.com/s/r76jkxweizsllfe/busters%20escape%20v5%20.c3p?dl=1

The event line is 221.

You need 2 Global Variables :

- currentScale

- MAX_SCALE(Constant Number)

Example for ZOOM IN :

If Player overlaps Candle ->

Sub-Condition : currentScale < MAX_SCALE :

Add dt to currentScale

Set layer X scale to currentScale

If Player NOT overlaps Candle ->

Sub-Condition : currentScale > 1 :

Subtract dt from currentScale

Set layer X scale to currentScale

There is my screenshot which I made with Construct 2: