vte

Implement the following VT sequence:

CSI Ps SP u
       Set margin-bell volume (DECSMBV), VT520.
         Ps = 0 , 5 , 6 , 7 , or 8  -> high.
         Ps = 1  -> off.
         Ps = 2 , 3  or 4  -> low.

Thanks for the great extension! I'm switching from Drop Down Terminal X since it seems it will be no longer maintained in favour of this extension, and in general this seems like a great and featureful substitute.

However, is it possible to configure ddterm to appear when scrolling down with the mousewheel on the top bar, and hide when scrolling