TX Plan pulled to Discharge Summary

Wondering if there is someway to have the last TX plan pull to the discharge summary. What happens is, it will pull if the discharge summary is done within the 90 days that the TX plan is valid but if outside that time it does not pull. The reason of it being outside that time frame would be that the client has not returned so the clinician has not done a new TX plan but is still in a waiting period to see if the client is going to return. This just depends on when the last appointment falls. It there a setting that can be changed just for the one form?