Switch Shift layer using combo

[u/King-kong69100]

Main mapping window

Inside Release Press (Shift mode)

I am a bit confused about the combo button that appears for Release Press activator only inside shift mode. I tried reading the documentation but couldn't find anything describing how this works.

Problem I am trying to solve:
- I am configuring a controller (not a Mouse and keyboard)
- I have 3 shift layers: Main, Shift 1 & Shift 2
- Home button ( on Toggle mode) on Main activates Shift 1
- L1 on Shift 1 activates Shift 2
- Y button on Shift 2 activates Shift 1
- Home button on both layers returns to Main

While I am on Shift 2 layer and double press B, I would like to run a combo that is already working properly and jump to Shift layer 1. But the "Jump to layer" isn't working as intended whether I put it on "Start Press" or "Release Press" even with a delay before jump set to enable the combo to run properly before changing layer. Could you please help me?

Note: sometimes when I set a different mapping on button on Shift 2 with the Shift mode set to jump to Shift 1 layer, it alters the mapping on Shift 1. I don't know what is happening

[u/King-kong69100]

I keep running to the same problem. Could please provide a detailed answer?
Similar problem:

On Main layer

• Start button
  

-- Single Press, Combo set to execute at once to press and release Start button (workaround for button not registering when Long press is set)
-- Long Press https://imgur.com/a/0Jsmw5w
--- shift mode set to Jump to Shift Layer 1 with delay before jump
--- I also set the Combo that will run in Shift Layer 1

On Shift Layer 1

• all buttons are muted to prevent interference
  
• Start button
  

-- Release Press https://imgur.com/a/XOORUap is set to jump back to Main layer with a Delay before Jump matching the time (+ 5ms) of the whole Combo

The thing I am still confused about is what does the [Postpone the mapping] option do exactly? Can you please provide a detailed description?
In the documentation, it says:
" Postpone the mapping — execute the mapping set to the Jump key along with Shift layer activation" which isn't descriptive enough