How do we populate attributes in XLA Lines table?

Dear All,

I have managed to split the revenue lines of  AR Invoice to the distribution of accounts and amounts I wanted. I used the accounting attributes while doing so.

One of the ask is to identify such SLA Lines created by SLA Customization if we were to call and the downstream program demands that the attribute of the XLA Lines table be updated by a value say 'Y'

Is this something which can be done via set up?

Any clues will be highly appreciated.

Thanks,

Pinakin