[xwiki-users] ACL missunderstand

Hello, I don't understand very well how new ACL working with nested page with 8.2.1 compared to spaces ACL on 7.x version About ACL, what use on xwiki 7.0.1 is: - read for XWikiAllGroup (everyone) - write + create page for "XWikiEditeurs" on "Encyclopédie" space (and read for every other page on this wiki) (I know wiki spirirt mean everyhome can write but my Boss...) then what I use on xwiki 7.x: - on main xwiki, I forbidden Edit for XWikiAllGroup - on "Encyclopédie space" I allowed "edit" for "XWikiEditeurs" (+ read and comment) and forbidden "edit" for allow only "read" and "comment" for XWikiAllGroup because I know that in my case, ACL on space overwriting wiki ACL When I upgrade from 7.0.1 to 8.2.1, I encoutered ACL problem, no one could create page on all the wiki :-/ I find that the cause is "forbidden Edit for XWikiAllGroup" on main wiki. My questions is: how ACL overwriting working with xwiki 8.2.1? Is ACL right with "Rights: Page & Children" is similar to space ACL? What if I apply some ACL rights on a page under "Encyclopédie" and next I apply different ACL right with "Rights: Page & Children" on "Encyclopédie"? Rights of children page are removed? To conclude, do you know which ACL I must apply to have same rights thant xwiki 7.0.1? (I must apply ACL right on ALL first level space?) Thxs for any help. Pascal B