Text Inside with Pop-up

Dear Xara...

I have an image that pop-up to 500px, when clicked.
(Photo > Image > Photo pop-up: 500px)

If I add Text Inside, only the image pop-up pops up.
(Text Area > Photo)

If I group the image (and Text Inside) to itself, the text then becomes part of the image and appears in the pop-up.
(Group > Text Area > Photo)

If I add Text Inside first then the 'Photo > Image > Photo pop-up: 500px' option is greyed out. I have to go the the Page & Layer gallery, open the Text Area and select the Photo.
(Text Area > Photo)


Where are these changes to the normal Xara workflow explained?

(Thanks)
Acorn