Residual value of asset

Hi SAP Experts,

I have a small query,

While creating legacy asset the requirement is that the value of the asset after its useful life should remain 1 (One). We are following Straight line dep. method, and after its full depreciation the value should remain 1 (one).

I want to know how and where to do settings for the same.

Thanks for your help.

Regards,

Jainendra Jain