As accidental operation, I undocked the inspector window, so I tried to redock it by double-click in its header area.
But the weird thing is: the Inspector window docked and occupied the upper half side, it covers the Composer window and Templates window. I tried to change its dock postion, I click and keep the left mouse button to want to drag the window, but the rectangular window cannot change size and cannot move to right. see picture 1.
I tried to dock the Inspector window beside the Editor Window on the lower half side, it works well, see picture 2.
But I still want inspector window is on the upper right side like default set,
Could you give me some suggestions how I can do? Thanks.