diff --git a/content/multipledataset.html b/content/multipledataset.html
index 5f20d80a..a456e7d4 100644
--- a/content/multipledataset.html
+++ b/content/multipledataset.html
@@ -19,12 +19,13 @@ draft: false
 <script src="https://cdn.rawgit.com/larsgw/citation.js/archive/citation.js/citation-0.4.0-9.js"
   type="text/javascript"></script>
 <script src="/js/DOICache.js"></script>
+<script src="/js/nestedCheckbox.js"></script>
 <script src="https://unpkg.com/simple-statistics@7.0.2/dist/simple-statistics.min.js"></script>
 <script>
   window.onload = async () => {
     const LatexInline = ['\\(', '\\)']
-    var al = $("#AllowList")
-    var ef = $("#excitationFilter")
+    var cbextl = $("#cb_exTypeList")
+    var allc = $("#AllowList:last-child")
     for (const [name, value] of excitationTypes.All) {
       var description = null
       switch (Number(value)) {
@@ -45,16 +46,15 @@ draft: false
           description = null;
           break;
       }
-      $("<li/>").text(LatexInline[0] + value.LaTeX + LatexInline[1] + (description == null ? '' : ": " + description)).appendTo(al)
-      $('<label />', { 'for': 'cb_' + name, text: LatexInline[0] + value.LaTeX + LatexInline[1] }).appendTo(ef);
-      $("<input/>", { type: "checkbox", id: "cb_" + name, name: name, value: Number(value) }).appendTo(ef)
+      $("<li/>").text(LatexInline[0] + value.LaTeX + LatexInline[1] + (description == null ? '' : ": " + description)).insertBefore(allc)
+      var cbli = $("<li/>")
+      $("<input/>", { type: "checkbox", id: "cb_" + name, name: name, value: Number(value) }).change(nestedCheckbox_change).appendTo(cbli);
+      $('<label />', { 'for': 'cb_' + name, text: LatexInline[0] + value.LaTeX + LatexInline[1] }).appendTo(cbli);
+      cbextl.append(cbli);
     }
     await MathJax.typesetPromise();
-    $("<li/>").text("Unsafe").appendTo(al)
-    $('<label/>', { 'for': 'cb_unsafe', text: "Unsafe" }).appendTo(ef);
-    $("<input/>", { type: "checkbox", id: "cb_unsafe", name: "unsafe" }).appendTo(ef)
-    delete (al)
-    delete (ef)
+    delete (cbextl)
+    delete (allc)
     window.doiCache = new DOICache()
     $('#form_dat > fieldset > input[type=radio]').on('change', async function (event) {
       processingIndicator.isActive = true
@@ -139,7 +139,7 @@ draft: false
     $(stb).empty()
     var refstr = $("#sel_ref option:selected").val()
     var sdatdic = new Map()
-    for (const d of window.filt) {
+    for (const d of window.filtData) {
       const key = JSON.stringify([d.code, d.method, d.DOI])
       if (!(sdatdic.has(key))) {
         sdatdic.set(key, new Map())
@@ -236,22 +236,23 @@ draft: false
     processingIndicator.isActive = false
   }
   async function reloadContent() {
+    window.filterParams = ($("#cb_unsafe").prop("checked"), Array.from($("#cb_exTypeList>li>input[type=checkbox:checked]").map(el => el.value).reduce((pv, cv) => pv + cv, 0)))
     doiCache.clear()
     processingIndicator.isActive = true
     const LatexInline = ['\\(', '\\)']
-    window.filt = window.dats
+    window.filtData = window.dats
     $('#form_dat > fieldset > div > select').each(function () {
       const prop = $(this).attr("name")
       const values = $(this).val()
-      window.filt = window.filt.filter((d) => {
+      window.filtData = window.filtData.filter((d) => {
         if (typeof values == "undefined" || values == null) {
           return false
         }
         return values.includes(JSON.stringify(d[prop]))
       })
     })
-    await window.doiCache.addRange(window.filt.map((d) => d.DOI.string))
-    for (const el of uniq(window.filt.map(d => [d.code, d.method, d.DOI]))) {
+    await window.doiCache.addRange(window.filtData.map((d) => d.DOI.string))
+    for (const el of uniq(window.filtData.map(d => [d.code, d.method, d.DOI]))) {
       op = $("<option/>", {
         value: JSON.stringify(el)
       }).text(el[1])
@@ -265,10 +266,10 @@ draft: false
     $(sel_ref).prop("selectedIndex", 0);
     var data = $("#data")
     $(data).empty();
-    if (window.filt.length > 0) {
+    if (window.filtData.length > 0) {
       var sets = await getSets()
       for (const doi of doiCache.keys()) {
-        paperdata = window.filt.filter((d) => {
+        paperdata = window.filtData.filter((d) => {
           return d.DOI.string == doi
         })
         var methods = uniq(paperdata.map(d => d.method))
@@ -307,11 +308,13 @@ draft: false
           }
           const key3 = JSON.stringify(dat.method)
           for (const ex of dat.excitations) {
-            const key2 = JSON.stringify([ex.initial, ex.final, ex.type])
-            if (!datadic.get(key1).has(key2)) {
-              datadic.get(key1).set(key2, new Map())
+            if (window.filterParams[1] & ex.type != 0) {
+              const key2 = JSON.stringify([ex.initial, ex.final, ex.type])
+              if (!datadic.get(key1).has(key2)) {
+                datadic.get(key1).set(key2, new Map())
+              }
+              datadic.get(key1).get(key2).set(key3, [ex.value, ex.isUnsafe])
             }
-            datadic.get(key1).get(key2).set(key3, [ex.value, ex.isUnsafe])
           }
         }
         for (const [molecule, moldat] of datadic.entries()) {
@@ -336,14 +339,14 @@ draft: false
                 return JSON.stringify(method) == x[0]
               })
               if (kv !== undefined) {
-                const [val,unsafe]=kv[1]
+                const [val, unsafe] = kv[1]
                 if (unsafe) {
-                  td.append($("<div/>",{title:"unsafe value",style:"float: left"}).text('⚠'))                  
+                  td.append($("<div/>", { title: "unsafe value", style: "float: left" }).text('⚠'))
                 }
-                if (unsafe && !$("#cb_unsafe").is(':checked')){
+                if (unsafe && !$("#cb_unsafe").is(':checked')) {
                   td.append($("<s/>").append(val))
                 }
-                else{
+                else {
                   td.append(val)
                 }
               }
@@ -376,6 +379,7 @@ draft: false
       <li>Publication</li>
       <li>Allow:</li>
       <ul id="AllowList">
+        <li>Unsafe</li>
       </ul>
     </ul>
     <li>Select a reference from <strong>already selected data</strong> (by default first is selected -it's the <abbr
@@ -414,6 +418,18 @@ draft: false
     </div>
   </fieldset>
   <fieldset id="excitationFilter">
+    <ul>
+      <li>
+        <h1>excitations types</h1>
+        <input type="checkbox" onchange="nestedCheckbox_change(event)" id="cb_exType_All"></input>
+        <label for="cb_exType_All"> All</label>
+      </li>
+      <ul id="cb_exTypeList">
+      </ul>
+      <li id="li_cb_unsafe">
+        <input type="checkbox" id="cb_unsafe" name="unsafe">
+        <label for="cb_unsafe">Unsafe</label>
+      </li>
   </fieldset>
   <input type="submit" disabled=true value="Load"></input>
 </form>