Feature request: keyboard shortcut to open database/table

I'd like to have Command-O or something like that to open the selected dabatabase or table.

In general I'd like to be able to move, open, save and execute using only the keyboard, I think open is the only one missing.

Thank you

No files or tests are named. Start by locating the existing keyboard-shortcut handling and the actions that open a selected database or table; done means a keyboard shortcut opens the selected item without requiring the mouse.

Written by the indexing model from the issue text.