Fusion -0 How to update Journal line description with AR invoice line description

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Dear Experts, 

Request you to please help me on how to update Journal line description with AR invoice line description using SLA.

Is there a way to do it without SLA changes. 

We wanted to have detailed posting of AR subledger transaction in GL .We have made two changes in SLA, 

1.Manage Subledger Accounting Options: General Ledger Journal Entry Summarization  chanhed "Group By General Ledger Date"

2. Changed seeded journal line rules  "Merge Matching Lines" as "No".

3. We have defined document Sequence on AR Transaction, it is showing up on Journal Descriptions. 

When we post Transactions in GL it is not showing any descriptions