can't resize height of the key efitor cubase8

Dear users, i can’t get back to normal size of the key editor.
Horizontal resizing is no problem, but the bottom of the key editor is far under my monitor and i can’t get down ther with my mousepointer to grab the bottom bar of the key editor to bring it back up.
Probably being stupid,but can’t get my head around it.
When i click full window vieuw(in the upper right corner of the window) i can’t resize.
any help?

Ji nad welcome,

Can you Resize it from top? If yes, make the window smaller, and then move it up to have an access to the bottom part.