Yeah there are definitely a lot of ways it could work. If they XIDs are programmatic or your fingers have too much sensation left, you can just have a big constant object you loop over....
var configured = {"reportName": ["Xid-for-excelReports.timeSeries[0].points-position-0", "...-position-1"],
....
} //JSON.parse(someAlphanumericPointForStorage.value); //Or yeah, use the JSON store
for(var report in configured) {
var points = configured[report];
foundTeplate.name = report;
for(var k = 0; k < points.length; k+=1)
foundTemplate.timeSeries[0].points[k].pointXid = points[k];
/* Do import, launch report, take a break, continue */
}