Here is an example, copying attachments from one incident record to another.
var sourceSysID = '9c573169c611228700193229fff72400';
var targetSysID = '9d385017c611228701d22104cc95c371';
var copyAtt = new GlideSysAttachment();
copyAtt.copy('incident',sourceSysID, 'incident',targetSysID);
If it was in a a br and I want to copy from lets say to current incident record to the record in the parent incident field it could look like this:
var copyAtt = new GlideSysAttachment();
copyAtt.copy('incident',current.getUniqueValue(), 'incident',current.getValue('parent_incident'));
And make this a async BR for performance.
