ed_f wrote:
I sent the site in post#1 - here it is again as direct link:
www.architekturfoto.de.
settings > popup > gallery is in fact just settings > popup gallery.
Ok. So on that page I see a slideshow. This has nothing to do with Settings > Popup.
ed_f wrote:settings in panel > page > gallery > slideshow do NOT affect a slideshow starting by clicking an image of any of my galleries and starting the slideshow. why?
What do you mean "do Not affect a slideshow starting by clicking an image of any of my galleries and starting the slideshow".
In your provided link, I see a slideshow and a slideshow only. What exactly are you trying to achieve on that page, and what exactly is not working. You want to click the image and start the slideshow?
ed_f wrote:I try to achive the same smooth transition as in the title gallery on all sub-galleries but do not reach that goal.
You mean you want the same transitions in the POPUP on sub-galleries as on the homepage SLIDESHOW? They are two entirely different module. The popup is made for efficiently browsing images, and it does not contain two images in such a way that you can crossfade between images (like the slideshow). The popup is made for best possible human interaction in navigating images.