"Load Schema" menu item not available

Hello,

I have a little problem with the "Load Schema" option under the "Workspace" menu. We have a roundtable installation that uses Pcase to define tables and fields. The database for this application that uses Pcase is updated very rarely. But now, some new tables and fields need to be created. First, I update the database with Pcase and then update a physics database using a delta file. When I want to update the database object using "Load Schema" then the menu option is not available. I have created a task for the update, selected the task and marked the database object but the "Load Schema" menu option is not available. What is the reason for that? How do I make the "Load Schema" menu item available?

We use OpenEdge 11.7.2 and RTB 11.6.1. And we use the "old" Appbuilder.

Regards Micke