[xwiki-users] openTo attr of documentTree macro DO NOT work

Xwiki-7.3 For example: My page hierarchy looks like: Sandbox.WebHome TestPage1 TestPage2 TestPage3 SubPage1 SubPage2 SubPage3 SubPage3-1 I want to create a tree open to 'SubPage2' So the tree should like: *Sandbox.WebHome ** TestPage1 ** TestPage2 ** TestPage3 *** SubPage1 *** SubPage2 *** SubPage3 I have a lot of code such like: {{documentTree root="space:Sandbox" showRoot="false" showTranslations="false" hierarchyMode="parentchild" openTo="document:Sandbox.SubPage1"/}} {{documentTree root="space:Sandbox" showRoot="false" showTranslations="false" hierarchyMode="parentchild" openTo="document:Sandbox.TestPage3.SubPage1"/}} But none of it works; the tree view user seen is always NOT expanded! It has just one level: *Sandbox.WebHome My user have to expand the tree hand by hand. Anyone can help me?