Create a macro in Xactimate desktop
A macro is a saved list of line items you can add to a structure. Using macros is a more efficient way to replicate repetitive tasks.
You can create macros in either Sketch or Estimate Items, whichever you prefer.
Because the method is the same in Xactimate online and Xactimate desktop, see Create macros in Xactimate online for details on adding macros.