Typo3 V12 Images in FlexForm in Sections

TYPO3 Questions
1

Hi,

in Typo3 V11 i used the Group-Type to get images in a Section because as far as i know, FAL did not work in Sections.
In V12 this doesn’t work anymore. The Wizard didn’t show the available Files or the Pages anymore.

Can somebody tell me to configure something like this for Typo3 v12 or hint me in the direction how this should be done?

Configuration from Version 11:

<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<T3DataStructure>
    <sheets>
        
        <content>
            <ROOT>
                <TCEforms>
                    <sheetTitle>Slides</sheetTitle>
                </TCEforms>
                <type>array</type>
                <el>
                    <!-- Add settings here ... -->

                    <slides>
                        <title>Slide-Elemente</title>
                        <type>array</type>
                        <section>1</section>
                        <el>
                            <slide>
                                <title>Slide mit Bild oder Video</title>
                                <type>array</type>
                                <el>
                                    <image>
                                        <TCEforms>
                                            <label>Bild (1920x920px)</label>
                                            <config>

                                                <type>group</type>

                                                <allowed>sys_file</allowed>
                                                <appearance>
                                                    <elementBrowserAllowed>jpg,jpeg,png,gif</elementBrowserAllowed>
                                                    <elementBrowserType>file</elementBrowserType>
                                                </appearance>
                                                <show_thumbs>1</show_thumbs>
                                                <size>1</size>
                                                <maxitems>1</maxitems>
                                                <minitems>0</minitems>



                                            </config>
                                        </TCEforms>
                                    </image>
                                    

                                    <text>
                                        <TCEforms>
                                            <label>Text</label>
                                            <config>
                                                <type>text</type>

                                            </config>
                                        </TCEforms>
                                    </text>
                                    <linktext>
                                        <TCEforms>
                                            <label>Linktext</label>
                                            <config>
                                                <type>input</type>
                                                <default>Jetzt informieren</default>
                                            </config>
                                        </TCEforms>
                                    </linktext>
                                    <link>
                                    <TCEforms>
                                        <label>Link</label>
                                        <config>
                                            <type>input</type>
                                            <renderType>inputLink</renderType>
                                            <size>30</size>
                                            <eval>trim</eval>
                                            <softref>typolink,typolink_tag,images,url</softref>
                                            <fieldControl>
                                                <linkPopup>
                                                    <options>
                                                        <!--<blindLinkOptions>file,mail,page,spec,url</blindLinkOptions>-->
                                                        <!--<blindLinkFields>class,params,target,title</blindLinkFields>-->
                                                    </options>
                                                </linkPopup>
                                            </fieldControl>
                                        </config>
                                    </TCEforms>
                                    </link>
                                    
                                </el>
                            </slide>
                        </el>
                    </slides>

                    <!-- end of settings -->

                </el>

            </ROOT>
        </content>
    </sheets>
</T3DataStructure>

Thanks
David