How to write-on or write-off revenue without being impacted by Percent Spent calculation

Summary:

Hi, we are using a Revenue Method of Percent Spent for our Project contracts. There is a requirement where the business wants to write-on or write-off revenue by entering a manual event, without it being adjusted by the Percent Spent calculation (which substracts the manual revenue events that have been processed from the costs/budget x contract amount).

Due to percent spent calculation, the revenue generation process is automatically creating reversing entries when a manual revenue event is entered.

Do I need to create a new (amount-based) Revenue Method and add it to the Revenue Plan on the Contract?