Hi @joe_s66, so the component you are referring to (/libs/granite/ui/components/coral/foundation/form/multifield) is different version of multfield. Which can be used in component dialogs, and yes it allows to wrap multiple elements inside.
However metadata schema is using its own set of components that are stored in other location, e.g. /libs/dam/gui/coral/components/admin/schemaforms/formbuilder/formfields/v2/mvtextfield
Saying that, you can not pick multifield you have mentioned on metadata schema at least directly from Touch UI. But keeping in mind you are working on xml level I think it is worth to try, there is slight chance it will work.
OK - here's the code that works:
<?xml version="1.0" encoding="UTF-8"?>
<jcr:root xmlns:sling="http://sling.apache.org/jcr/sling/1.0" xmlns:granite="http://www.adobe.com/jcr/granite/1.0" xmlns:jcr="http://www.jcp.org/jcr/1.0" xmlns:nt="http://www.jcp.org/jcr/nt/1.0"
jcr:primaryType="nt:unstructured">
<tabs
jcr:primaryType="nt:unstructured"
sling:resourceType="granite/ui/components/coral/foundation/tabs"
size="L">
<items jcr:primaryType="nt:unstructured">
<tab5
granite:rel="aem-assets-metadata-form-tab"
jcr:primaryType="nt:unstructured"
jcr:title="CompositeMultifield"
sling:resourceType="granite/ui/components/coral/foundation/container"
listOrder="4">
<items jcr:primaryType="nt:unstructured">
<col1
granite:rel="aem-assets-metadata-form-column"
jcr:primaryType="nt:unstructured"
sling:resourceType="granite/ui/components/coral/foundation/container"
listOrder="0">
<items jcr:primaryType="nt:unstructured">
<products
jcr:primaryType="nt:unstructured"
jcr:title="Custom Title"
sling:resourceType="granite/ui/components/coral/foundation/form/multifield"
eaem-show-on-collapse="EAEM.showProductName"
fieldLabel="Products">
<field
jcr:primaryType="nt:unstructured"
sling:resourceType="granite/ui/components/coral/foundation/container"
name="./jcr:content/metadata/licenses">
<items jcr:primaryType="nt:unstructured">
<column
jcr:primaryType="nt:unstructured"
sling:resourceType="granite/ui/components/coral/foundation/container">
<items jcr:primaryType="nt:unstructured">
<product
jcr:primaryType="nt:unstructured"
sling:resourceType="granite/ui/components/coral/foundation/form/textfield"
fieldDescription="Name of Product"
fieldLabel="Product Name"
name="./jcr:content/metadata/licenses/product"/>
<path
jcr:primaryType="nt:unstructured"
sling:resourceType="granite/ui/components/coral/foundation/form/pathbrowser"
fieldDescription="Select Path"
fieldLabel="Path"
name="./jcr:content/metadata/licenses/path"
rootPath="/content"/>
<license
jcr:primaryType="nt:unstructured"
sling:resourceType="granite/ui/components/coral/foundation/form/textfield"
fieldDescription="License Id"
fieldLabel="License Id"
name="./jcr:content/metadata/licenses"/>
</items>
</column>
</items>
</field>
<granite:data
jcr:primaryType="nt:unstructured"
metaType="text"
type="custom"/>
</products>
</items>
</col1>
</items>
</tab5>
</items>
</tabs>
</jcr:root>