The Tree view panel displays in the following three cases:
1.When using the 
Identify tool on a queryable vector layer according to the Settings > Record > Info tool = Tree view setting
2.Once captured the point, line, polygon feature's geometry according to the Settings > Record > New record = Tree view setting
3.Opening it manually from the Query > 
Tables command or from the Pan frame > 
Record button in the button in left hand side at the bottom
Tree view
Related Tree view settings
Changing from Tree view to List view
