diff --git a/content/multipledataset.html b/content/multipledataset.html
index 99564ee0..6a436a0d 100644
--- a/content/multipledataset.html
+++ b/content/multipledataset.html
@@ -68,7 +68,7 @@ draft: false
     processingIndicator.isActive = true
     var chks = []
     var chks = $("#form_datFiles > ul > ul > li >input[type=checkbox]:checked")
-    var proms = Array.from(chks).flatMap((c) => {
+    var proms = Array.from(chks).map((c) => {
       switch (c.value) {
         case "abs":
           return getAbsFilesName().map((f) => AbsDataFile.loadAsync(f));
@@ -81,7 +81,18 @@ draft: false
           break;
       }
     })
-    window.dats = await Promise.all(proms)
+    window.dats=[]
+    for(const subproms of proms){
+      var sub = await Promise.all(subproms)
+      for(mol of uniq(sub.map(d=>d.molecule))){
+        submol=sub.filter(d=>d.molecule==mol)
+        TBE=sub.find((d)=>d.method.isTBE)
+        for(dat of submol.filter((d)=>d!==TBE)){
+          dat.CopyExcitationsTypeFrom(TBE)
+        }
+      }
+      window.dats=window.dats.concat(sub)
+    }
     processingIndicator.isActive = false
     reloadFileSelector()
     await reloadSelect()
diff --git a/static/js/data.js b/static/js/data.js
index a3070f80..740d49e3 100644
--- a/static/js/data.js
+++ b/static/js/data.js
@@ -207,6 +207,16 @@ class dataFileBase {
     this.DOI = null
     this.sourceFile = null
   }
+  CopyExcitationsTypeFrom(data) {
+    for (const ex of this.excitations) {
+      const ex2=data.excitations.find((e)=>{
+        return (JSON.stringify(e.initial)===JSON.stringify(ex.initial)) && (JSON.stringify(e.final)===JSON.stringify(ex.final))
+      })
+      if(ex2!==undefined){
+        ex.type=ex2.type
+      }
+    }
+  }
   static async loadAsync(file) {
     switch (trueTypeOf(file)) {
       case String.name: