Problems with adding photogallery as subpage

[dh[root]]

subj

My customer ask me how, but I was trying and can't do it

Can you tell me how or why I can't do it?

Cheers!

 

[Dmitry Frantsev]

In current version it is not possible to add page modules as sub-pages for the site.
There is already such feature request exists for developers and it is going to be released in future Sitebuilder versions.