Your first Routing Control Site will be responsible for updating certain attributes after the block and carrier have been merged in the LOAD region.
This site will then move the block/carrier to the ROBOT_CONV region.
Tip: Refer to your Tracking model for which attributes are going to be updated.
In order for you to update the attributes with real data, you must provide some means to enter in that data, either automatically or manually.
Your solution will be to create a screen that will allow a user to modify certain attributes for the block.
Create a procedure to open another screen.
Configure the attrentry.cim screen.