diff --git a/application/config/stv.php b/application/config/stv.php
index d6d06f44e..000242ac5 100644
--- a/application/config/stv.php
+++ b/application/config/stv.php
@@ -61,7 +61,11 @@ $config['tabs'] =
 		'notes' => [
 			//if true, the count of Messages will be shown in the header of the Tab Messages
 			'showCountNotes' => true
-		]
+		],
+		'combinePeople' => [
+			//multitab should only be shown with this length of selection
+			'validCountMulti' => 2,
+		],
 	];
 	
 // List of fields to show when ZGV_DOKTOR_ANZEIGEN is defined
diff --git a/application/controllers/api/frontend/v1/stv/Config.php b/application/controllers/api/frontend/v1/stv/Config.php
index 20e43d23a..67b71c36d 100644
--- a/application/controllers/api/frontend/v1/stv/Config.php
+++ b/application/controllers/api/frontend/v1/stv/Config.php
@@ -231,6 +231,7 @@ class Config extends FHCAPI_Controller
 		$result['combinePeople'] = [
 			'title' => $this->p->t('stv', 'tab_combine_people'),
 			'component' => './Stv/Studentenverwaltung/Details/CombinePeople.js',
+			'config' => $config['combinePeople']
 		];
 
 		Events::trigger('stv_conf_students', function & () use (&$result) {
diff --git a/public/js/components/Stv/Studentenverwaltung/Details/CombinePeople.js b/public/js/components/Stv/Studentenverwaltung/Details/CombinePeople.js
index 4374687fe..facf8848f 100644
--- a/public/js/components/Stv/Studentenverwaltung/Details/CombinePeople.js
+++ b/public/js/components/Stv/Studentenverwaltung/Details/CombinePeople.js
@@ -8,50 +8,83 @@ export default {
 	props: {
 		modelValue: Object,
 	},
+	data(){
+		return {
+			iframeUrl: null,
+			viewLoaded: false
+		}
+	},
 	computed: {
 		personIds(){
 			if (this.modelValue.person_id) {
 				return [this.modelValue.person_id];
 			}
 			return this.modelValue.map(e => e.person_id);
-		}
+		},
+		detailStringPerson1(){
+			let person1 = this.modelValue[0];
+			return person1.vorname + " " + person1.nachname + "(" + person1.person_id + ")";
+		},
+		detailStringPerson2(){
+			let person2 = this.modelValue[1];
+			return person2.vorname + " " + person2.nachname + "(" + person2.person_id+ ")";
+		},
+
 	},
 	methods: {
 		combinePeople(){
-
+			this.viewLoaded = true;
 			let person1_id = this.personIds[0];
 			let person2_id = this.personIds[1];
 
 			if(person1_id == person2_id) {
-				return this.$fhcAlert.alertError("gleiche Person, keine Zusammenlegeung möglich");
+				//TODO(Manu) Phrase
+				return this.$fhcAlert.alertError("gleiche Person, keine Zusammenlegung möglich");
 			}
 
-			let linkCombinePeople = this.cisRoot + 'vilesci/stammdaten/personen_wartung.php?person_id_1=' + person1_id + '&person_id_2='+ person2_id;
+		//	let linkCombinePeople = this.cisRoot + 'vilesci/stammdaten/personen_wartung.php?person_id_1=' + person1_id + '&person_id_2='+ person2_id;
+			let linkCombinePeople = 'https://c3p0.ma0068.technikum-wien.at/fhcomplete/vilesci/stammdaten/personen_wartung.php?person_id_1=' + person1_id + '&person_id_2='+ person2_id;
 
 			console.log(linkCombinePeople);
-			window.open(linkCombinePeople, '_blank');
-
-
+			//window.open(linkCombinePeople, '_blank');
+			this.openLink(linkCombinePeople);
+		},
+		openLink(url) {
+			this.iframeUrl = url;
+		},
+		goBack(){
+			this.viewLoaded = false;
+			this.iframeUrl = null;
 		}
 	},
-	data(){
-		return {}
-	},
 	template:  /*html*/ `
 		<div class="stv-details-combine-people h-100 pb-3">
-			<h4>Personen zusammenlegen</h4>
 
-			{{personIds}}
-
-			<div v-if="this.modelValue.length">
-
-				<p v-if="this.modelValue.length == 2">
-					<button class="btn btn-primary" @click="combinePeople"> Zusammenlegen</button>
-				</p>
-				<p v-else">
-					ungültige Anzahl: {{this.modelValue.length}}
-				</p>
+			<div v-if="!this.viewLoaded">
+				<h4>Personen zusammenlegen</h4>
+				<div v-if="this.modelValue.length">
+					<div v-if="this.modelValue.length == 2">
+					<!-- TODO(Manu) Phrases-->
+						<p>Die Personen <strong> {{detailStringPerson1}} und {{detailStringPerson2}} </strong> zusammenlegen? </p>
+						<button class="btn btn-primary" @click="combinePeople">{{$p.t('ui', 'ok')}}</button>
+					</div>
+					<div v-else>
+						 ungültige Anzahl: {{this.modelValue.length}} <!-- should not be seen anymore-->
+					</div>
+				</div>
 			</div>
+			<div v-else>
+				<button class="btn btn-secondary" @click="goBack">{{$p.t('ui', 'cancel')}}</button>
+			</div>
+	
+			<!-- Iframe-Section -->
+			<iframe
+			  v-if="iframeUrl"
+			  :src="iframeUrl"
+			  class="w-100 mt-4 border-0"
+			  style="height: 600px;"
+			></iframe>
+
 		</div>
 	`
 	};
\ No newline at end of file
diff --git a/public/js/components/Tabs.js b/public/js/components/Tabs.js
index aedd5c1c9..5db8d66ba 100644
--- a/public/js/components/Tabs.js
+++ b/public/js/components/Tabs.js
@@ -33,7 +33,8 @@ export default {
 	data() {
 		return {
 			current: null,
-			tabs: {}
+			tabs: {},
+			count: null
 		}
 	},
 	computed: {
@@ -113,10 +114,12 @@ export default {
 				};
 			}
 
-			if (Array.isArray(config))
+			if (Array.isArray(config)) {
 				config.forEach((item, key) => _addToTabs(key, item));
-			else
+			}
+			else {
 				Object.entries(config).forEach(([key, item]) => _addToTabs(key, item));
+			}
 
 			if (this.current === null || !tabs[this.current]) {
 				if (tabs[this.default])
@@ -129,6 +132,57 @@ export default {
 		updateSuffix() {
 			this.getTabSuffix(this.currentTab);
 		},
+		removeInvalidCountTabs(){
+			if(this.modelValue.length)
+			{
+				let countIst = this.modelValue.length;
+				const tabsToDelete = [];
+
+				Object.entries(this.config).forEach(([key, item]) => {
+
+					const target = item?.config ? item : item?.value || item;
+
+					// check config for validCountMulti
+					if (target.config?.validCountMulti !== undefined) {
+						let tab;
+						let countSoll;
+						tab = key;
+						countSoll = target.config.validCountMulti;
+
+						//check if tab is existing
+						if (countSoll !== undefined && countSoll == countIst) {
+							//add tab if it was removed before
+							if (tab in this.tabs == false) {
+								const value = Vue.reactive({
+									suffix: '',
+									showSuffix: item.showSuffix || false
+								});
+
+								this.tabs[tab] = {
+									component: Vue.markRaw(Vue.defineAsyncComponent(() => import(item.component))),
+									title: Vue.computed(() => item.title || tab),
+									config: item.config,
+									tab,
+									value,
+									suffixhelper: item.suffixhelper ?? null
+								};
+							}
+						}
+
+						//add to toDeleteArray if count is not allowed
+						if (countSoll !== undefined && countSoll !== countIst) {
+							tabsToDelete.push(tab);
+						}
+					}
+				});
+
+				// Delete all tabs with count not allowed
+				tabsToDelete.forEach(k => {
+					delete this.tabs[k];
+				});
+
+			}
+		},
 		async getTabSuffix(tab) {
 			if (!tab.value.showSuffix) {
 				return;
@@ -151,9 +205,11 @@ export default {
 	},
 	mounted() {
 		this.getTabSuffixes();
+		this.removeInvalidCountTabs();
 	},
 	updated() {
 		this.getTabSuffixes();
+		this.removeInvalidCountTabs();
 	},
 	template: `
 	<template v-if="useprimevue">