how to make idm download panel appear in opera

 

open opera and click on the opera icon.
click on extensions.
open file explorer or windows explorer.
navigate to C:/program files/internet download manager or
C:/ program files(x86) internet download manager.
drag the file IDMGCExt.crx to the extensions page.
leave the mouse when you see drop to install.
click install.
tick all options and voila.