Just looked at the manual to try to understand how to use these options in the template editor:
PICKER
WINDOW
POP UP
…and noticed there’s no section in the manual for the editor anymore.
Can someone explain what these things are?
Hi !
I don’t know for the picker but :
-Window is a container where you can put all object , like other container or control or modules or …everything in fact
-Pop UP is the same but it is composed of 2 object . a button and the container… the button let you open or close the container 
When you select POP UP the darkest grey part in the middle is the container and the brighter one around is the button . you have to separate both by ‘double touching’ the gobal object.
The good part is in each container you can put other container or objet …and everone is resize depending of his parent ! that cool !