Can multiple smartimage xtypes appear on one dialog tab in AEM

Widgets API document for smartimage

Note that the component is mainly designed for use on a separate dialog tab. You may use the component inside a CQ.Ext.layout.FormLayout optionally if you provide a suitable height setting.

Here are codes for dialog:

<?xml version="1.0" encoding="UTF-8"?>
<jcr:root xmlns:cq="http://www.day.com/jcr/cq/1.0" xmlns:jcr="http://www.jcp.org/jcr/1.0"
    jcr:primaryType="cq:Dialog"
    height="{Long}600"
    title="dialog"
    xtype="dialog">
    <items
        jcr:primaryType="cq:Widget"
        xtype="tabpanel">
        <items jcr:primaryType="cq:WidgetCollection">
            <panel
                jcr:primaryType="cq:Panel"
                title="Panel with two Images">
                <items jcr:primaryType="cq:WidgetCollection">
                    <firstimage
                        jcr:primaryType="cq:Widget"
                        cropParameter="./firstimage/imageCrop"
                        ddGroups="[media]"
                        fieldLabel="first image field"
                        fileNameParameter="./firstimage/fileName"
                        fileReferenceParameter="./firstimage/fileReference"
                        height="{Long}200"
                        name="./firstimage/file"
                        rotateParameter="./firstimage/imageRotate"
                        title="First Image"
                        width="{Long}200"
                        xtype="html5smartimage"/>
                    <secondimage
                        jcr:primaryType="cq:Widget"
                        cropParameter="./secondimage/imageCrop"
                        ddGroups="[media]"
                        fieldLabel="second image field"
                        fileNameParameter="./secondimage/fileName"
                        fileReferenceParameter="./secondimage/fileReference"
                        height="{Long}200"
                        name="./secondimage/file"
                        rotateParameter="./secondimage/imageRotate"
                        title="secondimage"
                        width="{Long}200"
                        xtype="html5smartimage"/>
                </items>
            </panel>
        </items>
    </items>
</jcr:root>

And the following is the result: