Set default keybind layout to match PowerBI/VSC standard or enable easy access to it

It's a little frustrating to have to go through every keybind one by one and figure out which ones are the ones I want to edit and being forced to google what could the keybind possibly be called in regards to its function when it's a commonly found keybind layout across MS space. Currently there's a number of keybinds that TE2 and TE3 don't use by default. The ones mostly in question are: ALT+SHIFT+DOWN = copy line down. ALT+SHIFT+UP = copy line up. CTRL+SHIFT+L = select all occurences of currently selected text. There's obviously more, but it'd be helpful if the DAX editor in TE would inherit the same keybinds as the native one or at least allow the option to easily swap to it without searching through entire keybind list. Additionally, down the road, it'd be nice if some teams were particular pedantic about their keybinds, it could be beneficial to allow downloadable layouts that can then be shared with ease and imported into TE as a new profile. - Inherit PowerBI's DAX editor / VSC's keybind layout that is common across Microsoft tools. - Alternatively easily allow to switch between TE default and the PowerBI default. - Additionally down the road, downloadable layouts that can be imported and reused as profiles for teams that want to customize. This issue was previously raised here: #1454 However it did not contain the additional context of perhaps setting an alternative keybind layout as an option.