Customize mouse actions similar to keyboard actions

[eugenesvk]

Sublime Text allows changing various mouse click/drage etc. actions in a similar way it allows to customize keyboard so you can set different select by word/line modifiers or jump to definition with Ctrl+RightMouseClick or switch tabs with extra mouse buttons or ...

Would be great if Zed were as powerful in its mouse bindings (and would also need to have OpenMouseContextView (or have an option to show key+mouse combined action view) to track mouse actions)