Para utilizar o asset InputDecreaseIncrease just drag and drop to use the component.

Input parameters:

• InputInteger = Integer variable that will be worked on in the input.
• Begin = Integer that will be the smallest possible limit to decrement.
• End = Integer that will be the maximum possible limit to increment.
• MessageLanguage = Define the message language = PT (Portuguese); EN (English); ES (Espanish). The Default is EN.

To pass data between blocks it will be necessary to create a client action and pass it as a parameter and assign a local variable. In Events / Handler

https://success.outsystems.com/documentation/11/building_apps/user_interface/reuse_ui/pass_data_between_blocks/