Election 646(6) how to show on the T1 side

T1
1

Hello amazing community!

I have a 1st year GRE T3 with a net cap loss that I am electing to carry back the the final T1 Election 164(6). The loss is shown on the T3 . My question is on the T1 side - is there a specific field or worksheet where I can enter the loss? Or do I need to override line 12700?

Thanks in advance for your help:)

2

I have entered it on Schedule 3 and it has been accepted by CRA, and refund received by trustee.

image.png