Toggling between multiple sets

### Is there an existing issue for this?

- [X] I searched the existing issues and did not find anything similar.

### Current Behavior

My setup:

Set1:
Left Shoulder (while held): set change 2

Set2:
Right Shoulder (one way): set change 3

Set3:
Left Shoulder (while held): set change 4

Set4:
Right Shoulder (one way): set change 1

When I press Left Shoulder + Right Shoulder in Set 1 it moves instantly to set 4 instead of to set 3 like expected. I tried adding a delay / pause / hold, but it didn't seem to help. I tried switching up the toggle so Right Shoulder + Left Shoulder would toggle the other set, but it was still was buggy.

Another thing that is annoying:
"Before you open window with advanced settings, you have to choice a key"
I end up pressing a random key then clearing it once I get to advanced.

### Expected Behavior

I'm trying to create a method of switching sets by pressing 2 buttons at once.

I want to press Left Shoulder + Right Shoulder to toggle between no input for games that have native controller support and mouse control when navigating the desktop.

### Steps To Reproduce

_No response_

### Environment

```markdown
Program Version 3.3.4
Compiled from packaging: GitHub Portable Windows Release
Built Against SDL 2.26.5
Running With SDL 2.26.5
Using Qt 5.15.2
Using Event Handler: SendInput
Host OS: windows Version: 10 Architecture: x86_64
```

### Anything else?

_No response_