Custom Profile Field in Postbit

[JustAskJulie]

I know there are at on of questions about how to do this and I know the basics. Here's where I'm at. I have a custom profile field that is included in my postbit. However,

1. I can't find it in my templates to edit it. I've searched with no luck. I know it should be in the postbit template but it's not. Any ideas where it may have hidden itself? The custom field in question is "SLS Handle: _____" as you can see in my screen grab.

2. I want to edit it so that where it shows the custom field "SLS Handle: ______" that the field "_______" is linked. The link itself would have to include the field data.

Hopefully, that all made enough sense for someone to help me out.