place on windows fullscreen mode

Hi everyone and sorry for my bad English!
Recently I installed parallels 13 and I tried to set up it as the previous version, but I found out a problem when I use a second/external monitor.
I can't anymore, to place the Mac square application on the parallels's windows when it is opened with the full screen mode.
Once I used to drug a Mac application in the second monitor and it remained foreground. I discovered that the setting has changed from parallels 11 to 13 version.
could you help me?
Thank you

 

Hello SIMONEPILAN, Are you referring about a Mac application or the Virtual machine configuration box?.