In Vegas Pro when you press "CTRL+Up" or "CTRL+Down" Timeline area maximizes or minimizes zoom level.

This is similar to Premiere Pro's "Zoom to timeline" Hotkey.

This is a VERY HANDY feature.

But when you go to keyboard customization - you can't find this feature or change a hotkey for it.

This is not good and should be fixed\added to the shortcut customization menu.