Profile feature: Loss Reporting Full Siding Replacement
When the Loss Reporting Full Siding Replacement profile feature is active, the Full Siding Replacement checkbox appears in the Loss Reporting card, which is under the Coverages & Loss tab in Claim Info.

Selecting the Full Siding Replacement checkbox tells Xactimate to gather and send information on siding replacements to XactAnalysis.
To activate this profile feature, read this article.