diff --git a/docs/lib/numerordinatio-picturam.mjs b/docs/lib/numerordinatio-picturam.mjs
index 5f5ef7a..a76ff28 100644
--- a/docs/lib/numerordinatio-picturam.mjs
+++ b/docs/lib/numerordinatio-picturam.mjs
@@ -1,7 +1,7 @@
 // Dominium Publicum
 // SPDX-License-Identifier: Unlicense
 
-import { Auxilium, Primitivum, codicem_separato } from './numerordinatio.mjs';
+import { Auxilium, BCP47Langtag, Primitivum, codicem_separato } from './numerordinatio.mjs';
 // import { datum_specificum } from './numerordinatio.mjs';
 // import * as D3 from 'https://cdnjs.cloudflare.com/ajax/libs/d3/7.2.1/d3.js';
 // import { * } from 'https://cdnjs.cloudflare.com/ajax/libs/d3/7.2.1/d3.js'
@@ -44,6 +44,38 @@ class PicturamDL extends Picturam {
   //   this.data = {}
   // }
 
+  static _htmlDataAttributes(linguam){
+    let crudum_html = []
+    let bcp47 = new BCP47Langtag(linguam, null, false).resultatum()
+
+    crudum_html.push(`data-significatum="1"`)
+    if (bcp47.language){
+      crudum_html.push(`data-bcp47-language="${bcp47.language}"`)
+    }
+    if (bcp47.language){
+      crudum_html.push(`data-bcp47-language="${bcp47.language}"`)
+    }
+    if (bcp47.script){
+      crudum_html.push(`data-bcp47-script="${bcp47.script}"`)
+    }
+    if (bcp47.region){
+      crudum_html.push(`data-bcp47-region="${bcp47.region}"`)
+    }
+    if (bcp47.variant && bcp47.variant.length > 0){
+      crudum_html.push(`data-bcp47-variant="${bcp47.variant.join(',')}"`)
+    }
+    // TODO: this is a nested object. Need different way to encode
+    if (bcp47.extension && Object.keys(bcp47.extension).length > 0){
+      crudum_html.push(`data-bcp47-extension="${bcp47.extension}"`)
+    }
+    if (bcp47.privateuse && bcp47.privateuse.length > 0){
+      crudum_html.push(`data-bcp47-privateuse="${bcp47.privateuse.join(',')}"`)
+    }
+
+    console.log('bcp47', bcp47)
+    return crudum_html.join(' ')
+  }
+
   inHtml() {
     let raw_html = ''
     // const RegulaCodicemPurum = `(\\p{General_Category=Decimal_Number}[\\p{General_Category=Decimal_Number}|\:|~]*\\p{General_Category=Decimal_Number})`
@@ -147,12 +179,14 @@ class PicturamDL extends Picturam {
                 // result += `\n${JSON.stringify([clavem_2, rem_subitem_2])}`
                 // let _linguam = clavem
                 let _linguam = clavem_2
+                // console.log('_linguam', _linguam)
+                let ldata = PicturamDL._htmlDataAttributes(_linguam)
                 for (let [_temp2, indicem_et_rem] of Object.entries(rem_subitem_2)) {
                   result += `<dl>`
                   // result += `<dt>${linguam}</dt>`
-                  result += `<dt>${_linguam}</dt>`
+                  result += `<dt ${ldata}>${_linguam}</dt>`
                   for (let [indicem, rem_crudum] of Object.entries(indicem_et_rem)) {
-                    result += `<dd>${indicem}: ${rem_crudum}</dd>`
+                    result += `<dd ${ldata}>${indicem}: ${rem_crudum}</dd>`
                   }
                   result += `</dl>`
                 }
diff --git a/docs/picturam.html b/docs/picturam.html
index fd21176..1fd7349 100644
--- a/docs/picturam.html
+++ b/docs/picturam.html
@@ -13,6 +13,15 @@
     details>details {
       padding-left: 2em;
     }
+
+    [data-hide-significatum="1"] dl [data-significatum="1"] {
+      display: none; 
+      /* display: initial;  */
+    }
+    [data-show-bcp47-language] dl [bcp47-language="1"] {
+      /* display: none;  */
+      display: initial; 
+    }
   </style>
 </head>
 
@@ -21,20 +30,61 @@ <h1>Numerordĭnātĭo pictūrae</h1>
 
   <div id="picturam-notitia">
     <ul>
-      <li>Exemplum: <a target="_blank" href='./picturam.html#?peritum={"json_iri":"data/exemplum/scientiae-communitatem--sexualitatem.json"}'>./picturam.html#?peritum={"json_iri":"data/exemplum/scientiae-communitatem--sexualitatem.json"}</a></li>
-      <li>Exemplum: <a target="_blank" href='./picturam.html#?peritum={"json_data":{"10":{},"10:1":{"lat-Latn":{"0":"Exemplum"},"prs-Arab":{"0":"مثال"},"rus-Cyrl":{"0":"Пример"}}}}'>./picturam.html#?peritum={"json_data":{"10":{},"10:1":{"lat-Latn":{"0":"Exemplum"},"prs-Arab":{"0":"مثال"},"rus-Cyrl":{"0":"Пример"}}}}</a></li>
-      <li>Exemplum: <a target="_blank" href='./picturam.html#?peritum={"json_form":{"10":{},"10:1":{"lat-Latn":{"0":"Exemplum"},"prs-Arab":{"0":"مثال"},"rus-Cyrl":{"0":"Пример"}}}}'>./picturam.html#?peritum={"json_form":{"10":{},"10:1":{"lat-Latn":{"0":"Exemplum"},"prs-Arab":{"0":"مثال"},"rus-Cyrl":{"0":"Пример"}}}}</a></li>
+      <li>Exemplum: <a target="_blank"
+          href='./picturam.html#?peritum={"json_iri":"data/exemplum/scientiae-communitatem--sexualitatem.json"}'>./picturam.html#?peritum={"json_iri":"data/exemplum/scientiae-communitatem--sexualitatem.json"}</a>
+      </li>
+      <li>Exemplum: <a target="_blank"
+          href='./picturam.html#?peritum={"json_data":{"10":{},"10:1":{"lat-Latn":{"0":"Exemplum"},"prs-Arab":{"0":"مثال"},"rus-Cyrl":{"0":"Пример"}}}}'>./picturam.html#?peritum={"json_data":{"10":{},"10:1":{"lat-Latn":{"0":"Exemplum"},"prs-Arab":{"0":"مثال"},"rus-Cyrl":{"0":"Пример"}}}}</a>
+      </li>
+      <li>Exemplum: <a target="_blank"
+          href='./picturam.html#?peritum={"json_form":{"10":{},"10:1":{"lat-Latn":{"0":"Exemplum"},"prs-Arab":{"0":"مثال"},"rus-Cyrl":{"0":"Пример"}}}}'>./picturam.html#?peritum={"json_form":{"10":{},"10:1":{"lat-Latn":{"0":"Exemplum"},"prs-Arab":{"0":"مثال"},"rus-Cyrl":{"0":"Пример"}}}}</a>
+      </li>
     </ul>
   </div>
+  <div class="row">
+    <div class="col">
+      <div class="form-check form-switch">
+        <input class="form-check-input instrumentum-optionem" type="checkbox" role="switch" id="ce" checked>
+        <label class="form-check-label" for="ce">
+          Expānsiōnem de conceptum
+        </label>
+      </div>
+      <div class="form-check form-switch">
+        <input class="form-check-input instrumentum-optionem" type="checkbox" role="switch" id="se" checked>
+        <label class="form-check-label" for="se">
+          Expānsiōnem de significātum
+        </label>
+      </div>
+    </div>
+    <div class="col">
+      <div class="input-group mb-3">
+        <span class="input-group-text" id="cl_label">BCP47 linguam</span>
+        <input type="text" name="cl" id="cl" class="form-control instrumentum-optionem" placeholder="lat, arb, grk"
+          aria-label="BCP47 linguam" aria-describedby="cl_label" value="lat, prs">
+      </div>
+    </div>
+    <div class="col">
+      <div class="input-group mb-3">
+        <span class="input-group-text" id="cs_label">BCP47 scriptum</span>
+        <input type="text" name="cs" id="cs" class="form-control instrumentum-optionem" placeholder="Latn, Zyyy, Zmth"
+          aria-label="BCP47 scriptum" aria-describedby="cs_label">
+      </div>
+    </div>
+  </div>
+
   <div class="row">
     <div id="picturam-form" class="col" style="display: none">
+      <div class="mb-3">
+        <button type="button" class="btn btn-primary actionem" id="picturam-form-actionem" style="width: 100%;">
+          āctiōnem
+        </button>
+      </div>
       <textarea style="width: 100%; height: auto; min-height: 20em;" id="picturam-form-textarea"></textarea>
     </div>
-    <div id="picturam-html" class="col">
+    <div id="picturam-html" class="col" data-hide-significatum="">
     </div>
   </div>
 
-
   <div class="d3_svg_demo2"></div>
   <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.min.js"
     integrity="sha384-QJHtvGhmr9XOIpI6YVutG+2QOK9T+ZnN4kzFN1RtK3zEFEIsxhlmWl5/YESvpZ13" crossorigin="anonymous"
@@ -59,10 +109,22 @@ <h1>Numerordĭnātĭo pictūrae</h1>
       let crudum_html = pic_html.inHtml()
       let wp = document.getElementById('picturam-html')
       wp.innerHTML = crudum_html
+      render_optionem()
+    }
+
+    function render_optionem() {
+      console.log('render_optionem')
+      let details = document.querySelectorAll('#picturam-html details');
+      // let significatum = document.querySelectorAll('[data-significatum]');
+      [...details].map(item => document.getElementById('ce').checked ? item.setAttribute("open", 1) : item.removeAttribute("open"))
+      // if (document.getElementById('ce').checked) {
+      //   [...details].map(item => item.setAttribute("open", document.getElementById('ce').checked))
+      // }
     }
+    window.render_optionem = render_optionem
 
     // http://git.workspace.localhost/EticaAI/numerordinatio/docs/picturam.html#?peritum={"json_iri":"data/exemplum/scientiae-communitatem--sexualitatem.json"}
-    function fontem_data_peritum(functionem_regressae){
+    function fontem_data_peritum(functionem_regressae) {
       let resultatum = peritum_defallo
       // console.log('fontem_data_peritum...')
       if (document.location.hash.indexOf('#?peritum=') > -1) {
@@ -83,20 +145,21 @@ <h1>Numerordĭnātĭo pictūrae</h1>
         } catch (error) {
           console.log('error resultatum', resultatum)
         }
-        if (resultatum.json_iri){
+        if (resultatum.json_iri) {
           console.log('resultatum.json_iri', resultatum.json_iri)
           d3.json(resultatum.json_iri).then((data) => {
             render(data)
           })
-        } else if (resultatum.json_data){
+        } else if (resultatum.json_data) {
           console.log('resultatum.json_data', resultatum.json_data)
           render(resultatum.json_data)
-        } else if (resultatum.json_form){
+        } else if (resultatum.json_form) {
           console.log('resultatum.json_form', resultatum.json_form)
           document.getElementById('picturam-form').style.display = 'block'
           document.getElementById('picturam-form-textarea').value = JSON.stringify(resultatum.json_form, null, 2)
-          document.getElementById('picturam-form-textarea').addEventListener('change', function(el){
-            render(resultatum.json_form)
+          document.getElementById('picturam-form-actionem').addEventListener('click', function (el) {
+            let json_data = JSON.parse(document.getElementById('picturam-form-textarea').value)
+            render(json_data)
           })
           // $('#picturam-form').toggle()
           render(resultatum.json_form)
@@ -107,6 +170,36 @@ <h1>Numerordĭnātĭo pictūrae</h1>
       console.log(resultatum)
     }
 
+    let picturam_html_wp = document.getElementById('picturam-html')
+    let instrumentum_optionem = document.getElementsByClassName('instrumentum-optionem')
+    let list = [...instrumentum_optionem]
+    list.map(item => item.addEventListener('change', render_optionem))
+
+    // @see https://css-tricks.com/almanac/selectors/a/attribute/
+    // @see https://css-tricks.com/a-complete-guide-to-data-attributes/
+    document.getElementById('se').addEventListener('change', function (el) {
+      // console.log('changed', el.checked, el)
+      if (el.target.checked) {
+        picturam_html_wp.removeAttribute("data-hide-significatum")
+      } else {
+        picturam_html_wp.setAttribute("data-hide-significatum", "1")
+      }
+    })
+    // document.getElementById('cl').addEventListener('change', function (el) {
+    //   let rem = cl.value.split(',').map(item => item.trim())
+
+    //   // console.log('changed', el.checked, el)
+    //   console.log(cl.value)
+    //   console.log('rem', rem)
+    //   if (rem && rem.length > 0) {
+    //     rem.forEach(language => {
+    //       picturam_html_wp.setAttribute("data-show-bcp47-language", language)
+    //     });
+    //   } else {
+    //     picturam_html_wp.removeAttribute("data-hide-significatum")
+    //   }
+    // })
+
     // function fontem_data(functionem_regressae) {
     //   let _functionem_regressae = functionem_regressae || console.log
     //   let de_hash = {}