diff --git a/stable.user.js b/stable.user.js
index 6fd5aac..3291ee5 100644
--- a/stable.user.js
+++ b/stable.user.js
@@ -31,6 +31,7 @@
 // @grant        GM_info
 // @grant        GM_getValue
 // @grant        GM_setValue
+// @grant        GM_deleteValue
 // @grant        GM_xmlhttpRequest
 // @grant        GM_openInTab
 // @license      GNU General Public License v3.0 or later
@@ -49,6 +50,7 @@
   const a = Main
   function getVal (name) { return GM_getValue(name) }
   function setVal (name, val) { return GM_setValue(name, val) }
+  function delVal (name) { return GM_deleteValue(name) }
   function openInTab (address, options) { GM_openInTab(address, options) }
   function xmlhttpRequest (opts) { GM_xmlhttpRequest(opts) }
   function info () { return GM_info }
@@ -57,8 +59,8 @@
   var data // all data, which is in the resource txt
   var addEventListener // add event listener function
   const lastChangeLog = '' // TODO
-  // const serverAdress = 'https://qmining.frylabs.net/'
-  const serverAdress = 'http://localhost:8080/' // TODO
+  const serverAdress = 'https://qmining.frylabs.net/'
+  // const serverAdress = 'http://localhost:8080/'
 
   // forcing pages for testing. unless you test, do not set these to true!
   // only one of these should be true for testing
@@ -349,8 +351,8 @@
       return this.Questions.length
     }
 
-    markActive () {
-      this.active = true
+    setActive (val) {
+      this.active = !!val
     }
 
     getIfActive () {
@@ -416,10 +418,11 @@
   }
 
   class QuestionDB {
-    constructor (getVal, setVal) {
+    constructor (getVal, setVal, delVal) {
       this.Subjects = []
       this.getVal = getVal
       this.setVal = setVal
+      this.delVal = delVal
     }
 
     get length () {
@@ -427,21 +430,35 @@
     }
 
     get activeIndexes () {
-      var r = []
-      for (var i = 0; i < this.length; i++) {
-        if (this.getVal('Is' + i + 'Active')) {
-          r.push(i)
+      return this.Subjects.reduce((acc, item, i) => {
+        if (item.getIfActive()) {
+          acc.push(i)
         }
-      }
-      return r
+        return acc
+      }, [])
     }
 
     GetIfActive (ind) {
-      return this.getVal('Is' + ind + 'Active')
+      return this.Subjects[ind].getIfActive()
     }
 
-    ChangeActive (i, value) {
-      this.setVal('Is' + i + 'Active', !!value)
+    ChangeActive (subjName, value) {
+      this.Subjects.find((x) => {
+        return x.Name === subjName
+      }).setActive(value)
+
+      let actives = JSON.parse(getVal('actives'))
+      if (value) {
+        actives.push(subjName)
+      } else {
+        actives = actives.reduce((acc, item) => {
+          if (item !== subjName) {
+            acc.push(item)
+          }
+          return acc
+        }, [])
+      }
+      setVal('actives', JSON.stringify(actives))
     }
 
     AddQuestion (subj, q) {
@@ -948,6 +965,7 @@
       }
       console.log('Moodle Test Script run time:')
       console.timeEnd('main')
+      SetActivesAsJSON()
     })
 
     if (forceTestPage || forceResultPage || forceDefaultPage) {
@@ -1005,11 +1023,24 @@
     FreshStart()
 
     Version15()
-    Version16()
   }
 
   // : Version action functions {{{
 
+  function SetActivesAsJSON () {
+    if (!getVal('actives')) {
+      let res = []
+      for (let i = 0; i < 100; i++) {
+        let a = getVal('Is' + i + 'Active')
+        if (a && data.Subjects[i]) {
+          res.push(data.Subjects[i].Name)
+        }
+        delVal('Is' + i + 'Active')
+      }
+      setVal('actives', JSON.stringify(res))
+    }
+  }
+
   function FreshStart () {
     var firstRun = getVal('firstRun') // if the current run is the frst
     if (firstRun === undefined || firstRun === true) {
@@ -1031,18 +1062,6 @@
     }
   }
 
-  function Version16 () {
-    var version16 = getVal('version16') // if the current run is the frst
-    if (version16 === undefined || version16 === true) {
-      var i = 0
-      while (getVal('Is' + i + 'Active') !== undefined) {
-        setVal('Is' + i + 'Active', false)
-        i++
-      }
-      setVal('version16', false)
-    }
-  }
-
   // : }}}
 
   function ReadNetDB (cwith) {
@@ -1116,17 +1135,30 @@
           isSimple: true
         }, undefined, ShowHelp)
       }
-      var r = new QuestionDB(getVal, setVal)
+      var r = new QuestionDB(getVal, setVal, delVal)
       var rt = []
       var allCount = -1
       LoadMOTD(d)
       LoadVersion(d)
 
+      let actives = []
+      try {
+        actives = JSON.parse(getVal('actives'))
+        if (!Array.isArray(actives)) {
+          throw new Error('not an array')
+        }
+      } catch (e) {
+        Log('Unable to parse active subjects!')
+        setVal('actives', '[]')
+        actives = []
+      }
+
       for (let i = 0; i < d.Subjects.length; i++) {
         let s = new Subject(d.Subjects[i].Name)
         s.setIndex(i)
-        if (getVal('Is' + i + 'Active')) {
-          s.markActive()
+        let isActive = actives.includes(d.Subjects[i].Name)
+        if (isActive) {
+          s.setActive(true)
           var j = 0
           for (j = 0; j < d.Subjects[i].Questions.length; j++) {
             var currQ = d.Subjects[i].Questions[j]
@@ -1144,11 +1176,6 @@
 
       data = r
       count = allCount + 1 // couse starting with -1 to show errors
-
-      let i = 0
-      while (i < data.length && !getVal('Is' + i + 'Active')) {
-        i++
-      }
     } catch (e) {
       Exception(e, 'script error at loading:')
       count = -1 // returns -1 if error
@@ -2032,7 +2059,7 @@
             checkbox.setAttribute('id', 'HelperTextNode' + i)
             checkbox.addEventListener('click', function () {
               var checked = document.getElementById('HelperTextNode' + i).checked
-              data.ChangeActive(i, checked)
+              data.ChangeActive(subj.Name, checked)
             }) // adding click
           })
         })