signal action only specific object

[elicat]

Hello,
In my project into a main qml I create more object from an specific component.
So I have

main.qml
tabSplit.qml

And with dynamic code into main.qml I create other object from tabSplit.qml where signals are also defined (example : onLoadButton , so I have:

main.qml
VirtualObjectCreated_A.qml (from component tabSplit.qml)
VirtualObjectCreated_B.qml (from component tabSplit.qml)

When in my program I call the signal loadButton into c++ and the call start from the VirtualObjectCreated_B or VirtualObjectCreated_A

emit loadButton(parameter);

it happens that it is called twice

how can I refer the signal to the object created in dynamic mode?