Central Variable for DB Table Selector

Dear Knime Community,

I have the use case, that I read several database tables from a MS SQL Server database.

In every DB Table Selector I need an information from a flow variable.

At the moment, I connect the variable to each DB Table Selector node.

As I have lots of tables to read, the workflow is really confusing due to alle the variable connections.

My question: Is there a way to ingest the variable in a central point and use it for all the DB Table Selector nodes?

Here is a snip from my workflow (part of it):

Thank you and kind regards,

Andreas