It is possible to exclude from Cash Management one transaction source?

Summary:

I need to know if there is possible to exclude transactions with a determined source in order to this transactions not appear in the Cash Management screen?

Content (please ensure you mask any confidential information):

For example, in the next picture there are two lines from Receivables (those lines are monthly)

This account have 2 monthly transactions from Receivables, but the transaction in Receivables is full fictional, in a "non-real account" let's say. But, this fictional transactions generate a payment that we receive because the system do that... Can I restrain that in order to not appear in Cash Management?