1. The project may be running, stop the project if running with the F7 shortcut.
   
   
2. If the pin to connect to is gray, the data type is incompatible.
   1. Add the box type converter in between to convert the data.
   2. If not possible, see the Data Type and Conversion User Guide for more information.
      
      

Tips: To know the pin data type, mouse over a pin, or click on it to output pin information in the Console.